rm125 for trail Posted April 14, 2010 Hi I got a 1999 rm125 and m looking at getting a Muffler but im not sure which one to get FMF PowerCore 2 Shorty or Pro Circuit R304 Shorty Silencer. Would someone be able t tell me the ups and downs or which one is best im looking for some more bottom end and top.. Thanks, Nick Share this post Link to post Share on other sites
zig06 Posted June 6, 2010 They are both going to be very close in performance. Go with the one that you can get the best deal on. Share this post Link to post Share on other sites
chemicalanarchy Posted June 8, 2010 I thought I'd seen before the Lords of TT switch back to this forum that the PC has a much smaller diameter exit than even the stock silencer and I 'think' FMF's are fairly large. I'd think a smaller hole limiting exhaust would lower top end benefits while being quieter and I know the FMF's I have which aren't Q's are loud as hell. Share this post Link to post Share on other sites
Nighthawk016 Posted June 8, 2010 I had the 304 on my RM250, It was audibly louder than the turbine core 2 i have now. The 304 is very unrestrictive, and gives good top end Share this post Link to post Share on other sites
KcDavis My Ride Posted June 8, 2010 The turbine core 2 should be noticeably quieter. It is a forest service approved spark arrester designed to be at or under the max amount of decibels allowed for riding on public lands. Share this post Link to post Share on other sites
chemicalanarchy Posted June 8, 2010 Ummm, the FMF turbinecore and the powercore are different, aren't they? One is forestry approved and the other is a shorty like the PC? The turbinecore is the 'stealth Q' series, isn't it? That's entirely different than a 'shorty' for the track. Share this post Link to post Share on other sites
MotoXRyne My Ride Posted June 9, 2010 Ummm, the FMF turbinecore and the powercore are different, aren't they? One is forestry approved and the other is a shorty like the PC? The turbinecore is the 'stealth Q' series, isn't it? That's entirely different than a 'shorty' for the track. The Powercore, Turbinecore, and Q are all different. The Shorty is just a shorter Powercore. Share this post Link to post Share on other sites
Pitviking Posted June 10, 2010 I put a FMF shorty on my 98 and it gave it some bottom end,didn't notice much difference anywhere else. Share this post Link to post Share on other sites