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Found 14 results

  1. I Have a 2015 KTM 450 XC-W factory edition . I removed stock muffler and installed an FMF powercore 4 slip-on. OMG!.. The bottom end is Insanely powerful!.. But I seem to have lost that mid range powerband pull?.. Seems flat in mid and I am now often WOT. Am I now too lean?. How do I get mid back?. William.
  2. I just recently did an exhaust repacking on my FMF Turbine Core spark arrestor pipe for my ‘98 CR250r and was able to repack and re-rivet the pipe from the end leading to the bike’s cylinder head and expansion chamber (two-stroke) without any problems. When I remounted the exhaust I noticed the tail end had an inner metal tube that was loose and could be moved around easily. I believe it was tack welded into place and he welds broke but just wondering if anyone has dealt with the exhaust outlet side when repacking the bike side and wether I didn’t assemle the exhaust correctly or whether the back part of the tubing just broke free?? Also how to fix? Here is a pic of the exhaust tip with the inner tube obviously out of place and not lined up with the outer.
  3. Hi , Any suggestions about RMX250 after market expansion chamber , my RMX is SJ14A Australian and Domestic Japanese market version and the placement of the expansion chamber is a bit lower then the US version RMX . I have already changed my silencer and welded custom mid-pipe . If i cant find any aftermarket pipe or difficult get can i customize original expansion chamber for a bit extra power ? thanks!
  4. DTM Industries

    FMF (sold )

    THIS ADVERT HAS EXPIRED!

    • FOR SALE
    • USED

    ( Sold )FMF system complete, came off a 2006 YZ450f, may fit other models contact fmf for information , will ship

    NO VALUE SPECIFIED

    Simi Valley, California - US

  5. 2012 KLX250S with FMF powerbomb. Melted my DS pants in a hail storm at 12,000 feet trying to get off the mountain in lightning. These were on back order but Rancho Cuchamonga Yamaha online kept my order for months until it was in, and sent it. I had to grind angles on the tabs to fit the taper of the bomb. Visually I do not like the hose clamp, but understand function over looks. Fit is super tight. No test ride today, been too sick. Hopefully this does not stick out too far. I will update with how well it works as soon as I test ride it.
  6. CrenulateMist

    Exhaust for an 83' Honda XR350

    I was wondering if there was a general FMF brand exhaust pipe (or other type of exhaust brand) for my 1983 Honda XR350, as the previous one is filled with old oil sludge buildup (the bike was burning oil heavily before i got it rebuilt and was leaking oil buildup out of the end of the pipe) sourcing a new one is a pain, so if there is a new pipe I can purchase, please let me know. As of now I cant find one for my bike from any brand. Thanks
  7. I know this topic has been discussed in the past, but I have not found any options available for the new 2018 bikes. I live and work for a new Beta Dealer (Auburn Extreme Powersports) in California, and we are having a difficult time mapping the RR-S bikes for full FMF exhausts. We have tried contacting Beta Support several times for this issue to no avail, and we typically are given the runaround when transferring to techs and secretaries. From what we can gather, the FMF flash is designed for the RR bikes, but not the street-legal counterparts. Every time we try to install the FMF map onto an RR-S errors occur, and the programmer screen goes virtually blank. We have heard through the grapevine that some are using the RR maps on the RR-S with success, but we have yet to try it, even on our own bikes for fear that it will permanently erase or damage the CDI. Any and all help or suggestions regarding this topic would surely be appreciated! Thanks, Ben.
  8. So I needed to get a spark arrestor for my FC350. It has internal screen which passes the stick test, but it was just for peace of mind in case you get a ranger that is super anal. I debated getting the PMB endcap, but decided to go with the FMF, partially because I figured it would be about 1lb lighter. That seemed realistic going from OEM can to full Ti can. I got it tonight and weighed both to confirm just like FMF website and every retailer and puppet that regurgitates their marketing claim says: huge weight savings! http://www.fmfracing.com/Product/ProductDetail?CategoryID=569&BikeType=MX%2FOFFROAD&BikeMake=HUSQVARNA&BikeModel=FC350&BikeYear=2016&ItemID=045595&imaConfig=Single&ParentCategoryID=31&Priority=8 OEM FC350 canister (the cone is removed but internal screen is kept). 2053g (4.52lb): FMF full Ti 4.1RCT: 2036g (4.48lb), it is A FULL 1/2 OUNCE LIGHTER! That 17g savings is huge, though to be fair I probably should have cleaned the mud off inside of Husky can before weighing, which would have made the true difference a bit closer. Of course once the spark arrestor is installed it will be heavier, but who cares about facts in today's dumbed down world. Besides I will have to do some serious filing on the spark arrestor to make it so since it won't fit anyway. So for now I can enjoy the benefits of losing 17g for a mere $400. And I am in disbelief at how poor the workmanship is besides the fact that the spark arrestor OD is too big to seat in the ID of exhaust. The form of the canister is so bad that there are .03" gaps at the endcaps on the sides. Literally a .03" feeler gauge slides right in. There seems to be no sense of shame in claiming "american made" right on the can. Yeah this post is a bit sarcastic in tone because I'm irritated with myself for thinking I was being realistic thinking it could be a lb lighter, but I really didn't expect it to be the exact same weight and made so poorly. Lesson learned, next time just buy the endcap.
  9. Hey whats up guys and gals , I am just curious and wondering to see what you guys hate about your dirt bike or a problem you wish your bike would never have. Just curious its for a school project and I just thought you guys could help me out. Thanks
  10. Hello. I just picked up my 2018 EXC-F 500. I ordered Vortex, FMF 4.1. and I plan to do the reed removal (unless someone suggests a reason to keep it...e.g. does it help w/ low-end torque?) I will do the emission delete, but am looking for suggestions on the best kit (best emission delete kit?) Other than Vortex (or perhaps 2019 500 Six Days ECU), FMF, the reed, and emissions delete, what else should I do? I am VERY heavy for this suspension at 6'2" 235. Should I respring both the fork and the shock? I did search the forum for a "one-stop shop for necessary mods" and didn't find one. I just cobbled this all together by reading and was hoping the fine folks on here would help me avoid any pitfalls. I am also getting the XL 80 Baja Designs LED headlight for camping trips. What else am I missing? The bike is such a slug off the floor. I think we all know that. I thought since they came out with the 2019 EXC-F 500 Six days (not street legal) that I may be able to buy that ECU and plug it in rather than the Vortex? Any thoughts on that? Prob won't work but it was just a thought. How much is a OEM ECU?
  11. Jared Sheckler

    XT600 mods

    Long time reader, first time poster. Ive got a 1984 XT600 that needs a little work. Small upgrades. One of which is a new header and exhaust pipe. Its got a clapped out, rigged up Superclapp on it now. Ive heard a Honda XR600 fmf pipe will fit the XT. Anyone know if thats true, and if so which years fit which. Thanks in advance. Sheck
  12. I just stumbled across a hell of a deal on a brand new FMF Megabomb for a 2014 KTM 350 SX-F. However, I have a 2014 KTM 350 XC-F, and on the ad it says the pipe fits the SX-F models but says nothing about fitting the XC-F. Does anyone know if the head pipes on the SX-F's and XC-F's are interchangeable? I assume they would be since they are identical motors, but I don't want to order it and be SOL.
  13. pickels25

    FMF Muffler on Pre 96 XR250

    Hey all, ive been upgrading my 1995 XR250R and have come across many people using this FMF Muffler: http://www.fmfracing.com/Product/ProductDetail?CategoryID=42&BikeType=MX%2FOFFROAD&BikeMake=HONDA&BikeModel=XR250R&imaConfig=Single&ParentCategoryID=31&Priority=13 Has anybody here fit one of these on a 1995 or other pre 96 XR? If not what kind of good aftermarket muffler works with the 1995? Thanks and cheers
  14. Anyone know anything about this exhaust? Is this capped? Any information would be appreciated.
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