WebApr 19, 2011 · The 4.1 is good for a big bore engine. For a stock engine I would run the stock pipe, it will give you the best power. The pro circuit t4 is a good pipe for stock engines also, its a much smaller diameter pipe than the 4.1. I would personally stay away from the powercore 4. But its impossible to say what pipe to run without knowing the engine ... WebJul 6, 2010 · As much as I like it loud. The truth is riding areas and riding in general are threatened and loud bikes don't do anything but give people a reason to complain. The Q4 is a great pipe. You get more power and a great tone while keeping it tree hugger friendly. I'm considering purchasing the Quiet Core insert for my Powercore 4.
FMF POWERCORE 4 QUIET INSERT IN Q4 HEX db test Review …
WebOct 5, 2024 · find a different dealer. fmf has a specific map just for their pipes. the power core will def add some off idle snap. it was a little too loud for my liking. switched to a Q4. this is on my 18 390. not sure if there is a map for the 20's yet . … WebMar 2, 2011 · A lot of DRZ owners have never heard of MRD pipes...I was one of them until I checked in here at the forum.... If you only want to cruise around the woods on a stocker ,the FMF will serve that purpose ok...But for a stronger top end and if engine mods are planned ,you would be one step ahead if you got a SSW/MRD..... I actually run a FMF S/O … phonepay on laptop
Best All Round Muffler FMF Powercore4 vs Factory 4.1 vs Q4 vs …
WebDec 10, 2009 · I have had the PC4 on a number of machines over the years, and a bunch of my buddies have Q's. I won't call the Q "quiet" compared to stock, but it has better performance than any stock pipe and is definitely quieter than the PC4. Even a little more quiet is worth a small decrease in performance, especially on a dual-sport that may be … WebTesting the stock KLX250S exhaust against an FMF Q4 using SAE J2825 test procedures, drive-by, and rider's perspective to get a decent feel of how these two ... WebThe Powercore 4 spark arrestor muffler. FMF developed the Powercore 4 to increase the horsepower and torque throughout the entire power curve. Highest quality packing for … phonepay owner