Bought this on sale, best buy of the year for me.
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Bought this for a 2015 WR 450 that I ride year-round on tires and as a snowbike. Made a bid difference in starting and low-end grunt. The bike revs quicker and seems snappier. I also have the YZ ECU and FMF map loaded. It is truly a slip-on system and fit perfectly. Was pleasantly surprised by the sound - not too loud, but a good bark when the RPM's are climbing.
Gained 3 hp love the sound
This so cold spark arrestor came in the mail today and you still have to install the spark arrestor to make it an actual spark arrestor slip-on so that's kind of annoying and it didn't come with instructions on how to install the spark arrestor screen so not too pleased that I have to do some modifications to the exhaust at all
Bought this for a woods trip needing a spark arrestor
And it worked awesome. Simple install, didn't need any tuning
I love the sound and it fit on perfect. Had it installed in under 10 minutes.
I purchased the FMF GYTR Silencer and Powerbomb header for my '08 WR450F and was very pleased with the resulting quality, ease of installation and performance. The fitment was literally perfect, everything slipped together flawlessly and all the bolt holes lined up exactly. I did re-jet the main and pilot jets with help from a adjustable fuel screw while I had it apart, but the bike runs better than ever and has a nicer sound than it did with the stock silencer & header. The USFS approved spark arrestor adds some peace of mind as well. Very happy with the upgraded exhaust system overall.
Easy install ,great sound very satisfied with this pipe.