exhaust comes with a removable USFS-approved spark arrester. Removable spark arrestor included. Hi. 2023 ft. RotoMoto, Zach Osborne doesnt like Probation Penalties in Supercross, They Can Rub Me But I Cant Rub Back, Eli Tomac Explains His Line Choices on Oaklands Very Technical 2023 Supercross Track. On some models, like the YZ400 we alter the routing so that it's tucked into the bike better so that it's less vulnerable to damage and so that you can change the oil filter without having to loosen or remove it. $29.99 No Color. The Powercore 4 spark arrestor muffler. Product # 040638. 800-969-7501. I not have taken mine apart, never had a reason. The rumor mill has created several very creative meanings that we dare not share. Learn More, Order Status / Track OrderSign in not required. Nothing short of the utilization of plastic . Jun 22, 2015 Oddometer: 428 Location: Jackson , CA. Occasionally, the spark arrestor can wear out from usage, requiring that it be replaced. We are not drastically altering the power band of the bike. It was totally ruined. Removable spark arrestor included. dbw Pro Legend Inaugural Winner POTY - 2013. And I cant find any other SAs that fit the profile with a smaller diameter, (You must log in or sign up to reply here. Its this attitude where you respect other uses that makes a difference not whether or not my pipe reads at 94 db as opposed to 98db. May 23, 2020 #5. spradley wrote: So I hadn't every really thought much about the spark arrestor until yesterday and I decided . Spark Arrestors. Find the list of best Spark Arrestor suppliers & Manufacturers in Kochi. Spark arresters for steam locomotives may be internal (in the form of wire mesh inside the smokebox) or external.The earliest platforms for spark arresters in the United States were steam locomotives.Wood- and coal-burning locomotives produce embers which are readily transported by the wind. . Like I said, I'm not it a hurry to install, just curious and excited with my new toy. Use Pliers to pull out insert/spark arrestor. Can I run one of your headers with my stock muffler? Learn More, Order Status / Track OrderSign in not required. Hi all, I have a 2014 wr250r with a FMF q4 slip on exhaust and a mega bomb head pipe with all programmer and tuned. I couldn't even find any instructions on the, Here is a picture of the muffler, as you can see at the end cap there are only rivets, and inside the muffler there are no bolts of any sort. $44.99 . This is a great universal spark arrestor for 2-stroke machines! We recommend you call one of our customer service representatives at 310-631-4363 before you make any purchases to verify the fitment on your machine. This pipe gives an all around power increase similar to the Fatty, yet gives it even more mid and top like the Rev without sacrificing low end. And I know that I'll die. An old Connecticut Ag Experiment. I lost the spark arrestor in my 2-1 setup and fmf is unhelpful figuring out which I need. Give us a call or chat. Promix HP (High Porosity) is a popular choice for seedlings as it is very dry. How do FMF silencers work with a stock pipe? All our pipes other than the SST and ATV pipes are nickel-plated, which end up turning a slight gold color over time from the temperature, hence the name. Tom Wagner's Varieties: A Gardener's Guide I understand noise pollution is a sensitive topic and one that affects us all but i'd like someone to tell me whether or not ive got my spark arrestor in when im lining up with 15 other bikes during a club race on a private grass track just about to take off all revving bikes on the limiter at the same time or whether I have my spark arrestor in when Im play racing with my 5 other registered and licenced mates in the local bush all trying to get to the next corner first. The Shorty will give you even more throttle response and low end power. From NE Ohio to North Central Mississippi, everyone has their own ideas and preferences for what they will plant this year. It don't work that great, least it did not last very long when I tried it. click here. Using the proven design of the FMF Turbine Core Spark Arrestor is made specifically for those machines that do not have a bolt on application. . FMF Factory 4.1 4c Replacement Spark Arrestor Universal 040261 - Hillery Motorsports. That's why we've chosen to carry the most popular brands, including Yoshimura, fmf, Pro Circuit, Lexx and more. Tape, zip tie or wire the packing around the center section. If you're really looking for that factory silencer,there's our Titanium 2 silencer. I started shoving the SA down the muffler, but it is anextremelytight fit (yeah, I know."that's what she said"), I'm afraid I will not be able to get it out. We've taken the stocker header an improved it to the point that we're not drastically changing the powerband or losing power over stock. $39.99. Is it just for a different exhaust note? Thanks, and if you have any other advice, please share. Don't be fooled by larger diameter headers increasing power everywhere. How many discs should I run on my MegaMax? Proudly designed and made in Chino California USA. If your apparel doesn't fit right, you'll get FREE SHIPPING on the first exchange! So I'm turning to you guys to help me and the next "Kook" out on how to install and remove the SA. Easily serviced - just remove 2 bolts; Made in the U.S.A. $179.99 $ 179. FACTORY 4.1 RCT 94db W/SPARK ARRESTOR INSERT 040639. I pulled out the first section of packing out. All the FMF Q4, Power Core, Quiet Core spark arrestors will fit. FMF developed the Powercore 4 to increase the horsepower and torque throughout the entire power curve. Post Remove the spring ring from the spark arrestor. Last but not least to the 2-stroke line, the "Q-Stealth". The spark arrestor sits just inside the end of the muffler tailpipe and is attached with Allen screws. This expansion and contraction actually speeds up the exhaust through the header. These are modeled identical to the titanium headers and use the same CNC benders to insure proper fit every time. FMF Racing does offer select items for replacement partson your existing muffler. In this video we do a sound comparison of with the spark arrestor and without. If you don't have a spark arrestor they don't let the bike in. Rhodester. 49 matches. Approximately 99db stock or about 94db with optional Quiet Insert installed. It also has a scavenging effect on the exhaust port, which will let a fresher air and fuel charge into the cylinder for a more efficient burn. The newest addition to the line is the SST pipe. (800) 336-5437 7am-7pm Monday - Friday, 8am-4pm Saturday MT. The turbine part of the exhaust has packing wrapped around it. Does FMF Racing offer replacement parts for my muffler or silencer? FREE SHIPPING ON ORDERS OVER $75 (Continental USA Only). Other aftermarket motor parts may affect these specs; you would need to contact the manufacture in question fortheir jetting specs as necessary. Free Shipping on orders over $50. How do I find out what FMF offers for my Bike or ATV? P-CORE 4 HEX S/A INSERT 040670. Tom Wagner's varieties of tomatoes have been a hit among gardeners for years. #2. The packing turns into a slime type of something and just starts plugging the center section up. It is equipped with a US Forest Service-approved spark arrestor. Free shipping on many items | Browse your favorite brands | affordable prices. If you've vented the air box or removed the lid, close it back up. My two stroke passes with a fair margin with an FMF turbine core II silencer. The science behind the Megabomb header may be our greatest engineering accomplishment to date. Biggest risk to the hobby is noise pollution. There are a lot of options for packing but FMF is a name I can trust and offers a quality product at a decent price. If you are concerned about a possible loss of power due to the stock spark arrestor, don't be the stock 3 baffle muffler and head pipe are the restrictions on a Z400 not the spark arrestor. $39.99 Sold Out Notify Me No Color. P-CORE 4 HEX S/A INSERT 040670. When the spark arrestor screens are not required such as at the MX track simply remove two machine screws on each end cap and take out the screens, it's as simple as that. It may not display this or other websites correctly. $39.47. Having less backpressure (louder), the more top end power youll have. Remove ads, support ADV. Pro Circuit Type 296 Spark Arrestor Silencer $159.95 - $169.95 $179.95 - $202.95 You save up to 16%. The SST and ATV pipes have chrome plating for a higher luster. This is the header that helped win the 2011 AMA Supercross, 2011 AMA Motocross, and 2011 Motocross of Nations Championships. 99. The reason for this is because all of our canisters and mounting brackets are hand-made together and cannot be sold as individual items. The Q-Stealth is living proof FMF is the only exhaust company committed to bringing new technology to the 2-stroke enthusiast. Remove the spring ring from the spark arrestor. I don't run a spark arrestor screens are a huge impediment to flow but as Rogue stated it's a big deal out here in So. ($4.00 - $655.47) Find great deals on the latest styles of Fmf spark arrestor. Thats my 2 cents worth. A spark arrestor is designed to trap any glowing sparks before they exit your tailpipe by acting as a filter. Power, performance, and personality a new dirt bike exhaust can give you that and more, especially if its from FMF. FMF support vehicles are always on the move. We do not necessarily look for the fastest riders as much as we look for whom we feel would be the best representatives for FMF Racing. As it comes out work clockwise (or rotate spring ring counter clockwise). High performance silencers are made with performance and light weight as the prime objectives so one of the trade offs is having to maintain the silencing media or packing from time to time. Removing the FMF Q2 spark arrestor from an FMF muffler is not difficult and can be done in just a few minutes with an Allen wrench. For 2-Strokes and 4-Strokes What is the difference between a Shorty and a standard silencer besides the length? $38.14. At Rocky Mountain ATV/MC, we know dirt bike exhaust systems. Generally youll see a 5%-20% increase over stock depending on your application, but like jetting there are many variables to contend with. Proudly made in USA. FMF Factory-4.1 RCT Anodized Titanium Silencer with Carbon End Cap $517.99 . Click hereto view our jetting guides. Does an FMF exhaust add power? We offer our Hi-Flo and Powerbomb headers either in stainless steel or titanium. They may look a little different but the last thread we found them to be pretty much the same on the inside. Highest quality packing for long life. by skythrasher 02:33 pm Jul 11 2010, Post by Mr. Wibbens 08:41 pm Jul 11 2010, Post Shine a light down the end of the muffler and you will see there is a round spiral clip that is in there holding the insert in, just use a screwdriver and work the clip around until pops out then use some pliers and give the insert a yank and it will pop out. The three silencers we offer with spark arrestors are the Turbinecore's, Q Series and the Q-Stealth's. I've been looking all over the internet trying to figure out how the hell to install or remove this insert, its unlike by old PC spark arrestor. You must have JavaScript enabled for this page to function properly. . Check your local shops to see what distributors carry FMF Racing products in your country. Sign up to receive the latest news and deals from FMF Racing. It comes fitted with a USFS approved spark arrestor. The Enduro Engineering Spark Arrestor Exhaust End Cap will make your stock silencer a USFS approved spark arrestor silencer. If sound is a concern make sure you have the appropriate muffler installed on your machine. Quiet on the trail as well as on the sound meter. The Powercore 4 spark arrestor muffler. On my 450 it goes in the end cap and is held in by a little bolt. You will want to match the pipe with the powerband the motor was set up for. I would remove that spark arrestor and replace the air filter cage with a 2018 2 stroke cage that doesn't have a backfire screen. I like it better than the 2.1 for it's smaller size, Give us a call or chat. Occasionally, the spark arrestor can wear out from usage, requiring that it be replaced. The Universal is also perfect for the older vintage machines in need of a legal spark arrestor. Locate the Allen screws inside the lip of the tailpipe on the FMF muffler that secures the FMF Q2 spark arrestor to the muffler. We attend MX, SX, Freestyle, Desert, Enduro, GNCC and Cross-Country events across the USA all season long. I couldn't even find any instructions on the FMF site on how to remove or install the SA or quiet inserts that are offered for this bike. $159.95 $ 159. Could always tell where my kid was on the track. The reason for this is because all of our 2-Stroke silencers that have spark arrestors, are builtinto the actual core as a "Turbine Dampening System" that is welded to the core and isU.S. Forestry Approved. If you get lost and start a fire pray they'll never find you. Having that said, you can pick and choose the type of gains you're looking for and the features that best suit you, rather then us pre-determining them for you like other companies do. Universal Q4 Slash-Cut Exhaust End Cap by FMF Racing. If you have any questions that cannot be answered through our website, please call our dedicatedstaff members here at FMF Racing 310-631-4363 from 8am to 5pm Western time. When you buy through links on our site, we may earn an affiliate commission. Many things. All rights reserved. Proudly made in USA. Unfasten the Allen screws with an Allen wrench and slide the spark arrestor out of the muffler tailpipe. Work around until the whole clip pops in, and is secure between the back of the insert/SA and lip on your silencer. Quick Links. Shop FMF Inserts & Spark Arrestor at Dennis Kirk. Availability In Stock: Ships in 3-5 business days. Daytona PulpMX Fantasy Preview & Strategy | Before You Pick! STRP MNT W/RUBBER SLEEVE - PCORE 4, Q, Q2 040197, LONG STRP MNT W/RUBBER SLEEVE - PCORE 4, Q, Q2 040198, FREE SHIPPING ON ORDERS OVER $75 (Continental USA Only). We use data about you for a number of purposes explained in the links below. by skythrasher 08:34 pm Jul 11 2010, Post 2000 KX65 Spark Arrestor. Use a screw driver and install one end of the clip between SA and silencer. just wondering if it would work. I repacked my powercore 2 and it was VERY simple. Sign in or create an account to get RM cash on orders and open more site features. For outdoor high-speed tracks, this works awesome. Does anyone run fmf mufflers? Adventure Rider. If you are unable to properly jet your machine, contact a local certified technician to look at your carburetor. Show details. Depending on what type of riding you are doing, we offer a wide variety of set ups. There are two criterias to look at, performance and features. It seems to be some kind of press fit design. You cannot add a spark arrestor screen to any existing 2-stroke silencer. What's the benefit to doing this? The diff is the diameter of the outlet, 1 3/8 or 1 1/4 by memory. For the most part though, all of our pipes will work with a modified motor. "I know I was born. Take care! Check in the back of any MX magazine for info. Read through the information we have available for both pipes and silencers to get a pretty detailed picture in your head on how each of our products are making power and how they all interrelate. ON RE-ENTRY. The Powerbomb chamber has two functions. This was once called our Torque pipe, but it did not include the thicker steel construction. A two stroke running a little rich on the oil ratio will saturate the silencing media very quickly. Eg: If around houses on transport sections for example not to be a d#@ckhead and ride like its the last 100m of the race of your life or like on my last ride we came across some horse riders and all switched off bikes and rolled past the horse riders till at a respectable distance. With the shorter length can and altered core size, we decrease the amount of backpressure in the muffler, which on a 2-stroke will increase throttle response and low to midrange power. Many customers do just the slip on muffler, and re-use the stock header, but you can also add an FMF PowerBomb or MegaBomb header if you so desire. You wouldnt worry about that back section? All rights reserved. With a customized FMF setup, you can get the right power, look, and feel for your bike. One it acts like a pre-muffler to knock down the sound level a bit and two increases power by increasing the rate in which the header can flow. Starting Seeds with Cactus Mix: Challenges and Tips for Optimal Results, Using cactus mix for seed starting is an interesting idea, but it has its own set of challenges. brn6604; . . V2 Slip-on ('03 - '24) . Hope I could help. Stainless Steel Q4 Hex Replacement Rear Cone Cap - 040676 FMF. The FMF Q2 spark arrestor model is designed similarly to the Q4 model and is attached in the same manner. Someone looking for a smooth quiet ride probably wouldn't be happy in a 4X4 Turbo Diesel. Also when a test is being performed, make sure you've got the transmission in neutral, with the clutch pulled in, this will also keep some of the noise down. 2012 KTM 350 EXC-F. Purchased this kit because it had o rings as well as the springs. Make sure Spark Arrestor doesn't come out. However some systems can benefit from jetting changes in fact with some two strokes it may be required to prevent engine damage. To give our customers the best shopping experience, our website uses cookies. On a big bore four frequent high speed riding will also shorten the life of the media. FMF Factory-4.1 RCT Aluminum Silencer with Carbon End Cap, FMF Factory-4.1 RCT Anodized Titanium Silencer with Carbon End Cap, FMF Factory 4.1 RCT Spark Arrestor Insert, FMF Factory-4.1 RCT Aluminum System With Carbon End Cap, FMF Power Core 4 Hex Replacement Spark Arrestor Screen, FMF Titanium Heat Shield for Megabomb Header, FMF Factory-4.1 RCT Anodized System With Carbon End Cap, FMF Factory-4.1 RCT Anodized Titanium Silencer with Titanium End Cap, FMF Factory-4.1 RCT Aluminum Silencer with Stainless Steel End Cap, FMF Mini Factory-4.1 RCT Aluminum Silencer with Stainless Steel End Cap, FMF Titanium SX Style Megabomb Header/Mid Pipe, FMF Hex Q4 Replacement Spark Arrestor Screen, FMF Power Core IV Modular Quiet Core Insert, FMF Factory 4.1 RCT 94db Spark Arrestor Insert. If so, how should i repack it? There is a small. AMA and FIM enduro legal. For 2-stroke we offer replacement end cap kits which can be found byCLICKING HERE. Sold Out. Work around until the whole clip pops in, and is secure between the back of the SA and lip on your silencer. This also has a Forestry Approved Spark Arrestor. We do it the same reason why Ford makes so many different types of cars and trucks. Our main goal is to test, develop and produce exhaust products, and thats what we do best here. This FMF spark arrestor fits several major FMF exhausts, including the Titanium Powercore, the PowerCore 4 and the Q4. We offer this pipe for 80cc and 125cc's only and are recommended for higher skilled riders, as the power can be a little pipey. Sign in or create an account to get RM cash on orders and open more site features. FREE delivery Feb 21 - 23 . SuperTrapp makes the tuneable IDS2 muffler with quiet and race cores for the DR650. I dont think so. The deadline for sending in seeds was October 15th, but there are still plenty of ways to get involved. Unfortunately Pete, there are those among us who will cut off their nose to spite their face. spark arrestors, aluminum pipe guards, silencer packing and more. Pro Circuit also makes some slip-on type systems for the DR650. If your apparel doesn't fit right, you'll get FREE SHIPPING on the first exchange! Dont run less than 8 discs though. There is a circlip you have to remove to get the spark arrestor out. It looks like a flat split key-ring. $39.99. I started shoving the SA down the muffler, but it is an. However, the tip of the muffler where the spark arrestor is located is riveted in, making it hard to remove. Order . This item: FMF Racing 40670 Spark Arrestor Insert. http://www.fmfracing.com/Content/Instructions/000988.pdf. Approximately 99db stock or about 94db with optional Quiet Insert installed. Promoto Billet spark arrestors are an economical way to convert your stock muffler into a U.S.F.S. This is a common question we get here at FMF Racing. Do I need to use my stock OEM exhaust clamp with my FMF muffler? Shop official FMF Racing dirt bike & ATV mufflers and exhaust parts, exclusive apparel, t-shirts, hats, goggles, and sunglasses here. Home Forums Home > Bikes > Orange Crush (KTM) > Dakar champion (950/990) > Powercore 4 HEX Spark Arrestor Insert - 040670 FMF. Please keep in mind FMF's jetting specs are based on a stock motor with an FMF pipe. And an allen wrench to take out the screws to take it apart. For many gardeners, it starts with tomatoes. by cornishwrecker220 05:39 pm Jul 11 2010, Post I was maintenance the bike . Anybody ever heard of this????? In fact, thats what sets FMF apart from their competition options. Keep this in mind. A properly serviced spark arrestor will not affect nor degrade the performance of your quad. I think they are identical on the inside, just the outer can on the II was updated with the more modern style. This pipe takes a little from the bottom and puts it up on top to keep it screaming. Remove the FMF Q2 spark arrestor from the muffler and discard the part. If you trail ride, especially on public lands, you probably need a spark arrestor - by law. Why does FMF offer so many different types of exhaust systems? Remove ads, support ADV. This is our quietest silencer offered. The need for a spark arrestor probably ranks #1 as the reason why you would upgrade to an aftermarket muffler. (800) 336-54377am-7pm Monday - Friday, 8am-4pm Saturday MT. 5-7 oz Orange, mid season). FMF sells replacement packing for all of our systems. Approximately 99db stock or about 94db with optional Quiet Insert installed. 99. You are using an out of date browser. First, make sure your seeds are dry before sending them in. There is a smallcircumferentialrib about 1" down from the tip of the muffler, the rib is maybe 1/8" smaller diameter that the rest of the muffler inner pipe. What does each 4-stroke header do: PowerBomb, MegaBomb and Hi-Flo? by kdxinmt 05:37 pm Jul 11 2010, Post With thicker 18g steel construction, it will take the punishment you can throw at it. Get Ready for a New Season of Gardening -Choose from Tomatoes, Peaches, Corn, Zinnias & More! What pipe and silencer do I use if Ive had motor work done? Fatty pipes are designed to give the engine an all around power increase. by Mr. Wibbens 06:25 pm Jul 15 2010, Post We build our mufflers to be fully interchangeable between all of our products and stock components. #EE40-212 Fits: `18-21 KTM 85 SX Enter keyword or part # Login/Register. R. 9. We recommend using high temp silicone for an improved seal. Dear MXA, I never noticed that there was a wire screen inside the muffler on my KTM 350SXF until I looked into it with a . by kdxinmt 01:35 pm Jul 11 2010, Post Bloody noisy dirtbikers! Pipe measurements are pretty precise so even a small dent can change how the pipe works. Thanks, I sent a PM, if I don't get a response in the next few days I'll give FMF a call. Work around until the whole clip pops in, and is secure between the back of the SA and lip on your silencer. Don't let the lower price fool you into thinking they won't perform as well as the titanium versions though. We'll take a look and remove the review if it doesn't follow our guidelines. By Fisch Moto: They make easy to install USFS Spark Arrestors that fit 20mm-45mm outlets. by Mr. Wibbens 07:51 pm Jul 11 2010, Post Lets start with the exhaust, full race exhaust systems put out a lot of sound because they're smaller to save weight therefore they don't have a lot of packing material inside to help absorb the sound waves. There are many companies and dealers that can beat your pipe back into shape. A spark arrestor is a metal screen that goes in the tailpipe of your dirt bike and would keep any sparks from flying out the back of the tailpipe and lighting a wildfire. Love this silencer great sound and plenty of power! Compare prices & save money on Motorcycle Parts. There are no bolts on the end cap of the muffler to remove or bolt anything. Installation Guide. Our Turbinecore and Turbinecore 2 are our Forestry Approved Spark Arrested silencers. It turns out that pure sand can also be used for seed starting. This page was generated at 1 minute ago. The Rev pipe is designed for that rider that keeps it wide open. $269.99 $ 269. Remove the insert from the muffler outlet. Installed on Kawasaki kx100 for my daughter and she loved it. And I hope I don't have to disassemble the whole muffler to get it installed. Our stainless steel headers offer you a lower priced header with increased durability compared to our titanium versions, because of the material and its lower costs and MIG and TIG welding. On their 2smoke silencers, the pipe end is where you take the screws out. We offer many different exhausts that will address your needs. There is a spark arrestor insert that was included, but the previous owner only ran on tracks and did not ever need or install the spark arrestor insert. I got it cleaned out pretty good with a wire brush and aerosol cleaner as suggested. There are only two. ). Wibbs if I remember right yours is a Turbine Core, not the Turbine Core II. I bet if all 6 riders had mufflers that met current sound regulations and you suddenly came across non riders or those that don't appreciate what we do in the bush the answer would be the same. The Q-Stealth is living proof FMF is the only exhaust company committed to bringing new technology to the 2-stroke enthusiast. Inserting and removing the spark arrestor insert from any FMF muffler $36.18. We arent setup to fix pipes here at FMF. pro circuit spark arrester with fmf sst pipe? Our spark arrestor screens are United States Forest Service (USFS) Approved for forest or off-road riding. Wasn't about to drop $650 for a slip on though.. Kind of ridiculous deal FMF made with KTM to only sell through . This FMF shorty silencer is great. Check our search by bike engineat the top of your screento help identify what we have available for your machine. Using the exclusive "Turbine Dampening System" makes it a U.S. Forestry approved silencer. My owner's manual recommends periodic removal of the round plate on the end of the exhaust and a brushing to clean the spark arrestor of carbon. 9,427. Seems like I have read about some guys going down to the local Home Depot or Loews and buying home insulation to use for repacking but I have never seen what type to use? Our Powerbomb header takes it to the next level. XR200 IT175 XL250 IT200 KX250 XR660 KTM400 KTM380 KTM450 YZ426f ZZR1100, Its a shitload louder, nothing changes performance wise tho id say. Log in or Join. Removal 8. Exhaust Accessories. This is probably one of the most asked questions. , we carry top pipes, silencers, and slip-on systems like: The quality you need at the price you want FMF offers high-performing, affordable exhaust upgrades for your dirt bike. Gardeners around the world have been growing these varieties for the past 8-10 years and are sharing their experiences with others. Only 4 left in stock - order soon. All FMF 4-Stroke slip on's come with the Spark Arrestor Sound Insert included . If youre looking for an all around power increase we recommend running 11-13 discs with the quietcore out. Always a good option for a spark arrestor. Shine some light on the subject and you'll see what I am talking about. This video will teach you how to properly inset a spark arrestor into your existing FMF exhaust system. Remember, not all the sound comes right out of the exhaust. Shop for Exhaust, like FMF Factory 4.1 RCT Spark Arrestor Insert at Rocky Mountain ATV/MC. by kdxinmt 04:25 pm Jul 15 2010, Post Most dirt bikes come with a spark arrestor pre-installed, but some do not. a rubber mallet id a must as well for breaking loose the old silicone. Post reply Similar Topics. We do not recommend or guarantee you try to match it to a stock muffler. What does each pipe do with FMF silencers as opposed to a stock silencer? You should also label each packet with the variety name, date, and a brief description (e.g. Both the Hi-Flo and Powerbomb headers increase power throughout the entire power band. Removing the spark arrestor may have an effect on jetting. I run a pair of Q4 mufflers. i repacked my turbine core2 silencer just the other day..i wire-brushed the baffle & sprayed it with brake cleaner to clean off any oil ..DONT re-pack the silencer too tight! To give our customers the best shopping experience, our website uses cookies. Quiet on the trail as well as on the sound meter. FACTORY 4.1 RCT SPARK ARRESTOR INSERT 040638 . I understand noise pollution is a sensitive topic and one that affects us all but i'd like someone to tell me whether or not ive got my spark arrestor in when im lining up with 15 other bikes during a club race on a private grass track just about to take off all revving bikes on the limiter at the same time or whether I have my spark arrestor in when Im play racing with my 5 other registered and licenced mates in the local bush all trying to get to the next corner first.