Extruded from 6060-T6 aluminum alloy with factory replica stainless steel end caps
Completely repackable
Fits stock pipes as well as aftermarket pipes
No Horsepower Loss
U.S. forestry approved
No loose parts to fall off
Designed for your exhaust system needs
Will deliver unparalleled performance
Exquisite workmanship and great longevity
Product Details
Powercore 2.1™ Anodized Titanium Silencer by FMF Racing®. Built to provide excellent power for tracks geared toward 4-stroke machines. smooth power curve throughout the rpm range. large diameter canister for more deep exhaust note, lower noise and longer lasting packing life. optimally designed to complement performance of fmf pipes, works and fits on fmf or stock.
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/5
1-4 of 4 Reviews
5 of 5
Sounds Perfect! Five Stars
I’m very pleased with the results. Installed this muffler without any problems. It fits exactly as described and provides a slight increase in top-end speed. And yes, it sounds really nice. Loud but not annoying. Just what I wanted!
FMF Racing® - Powercore 4™ Slip-On Muffler
Posted by James (Fort Worth, TX) / June 04, 20202018 Yamaha YFZ450R
5 of 5
Nice Product, Works As Described
What a nice exhaust! Very easy to install. Everybody can do it in less than 15 minutes. Looks stunning and gives a slight increase in performance. The sound is miraculous. It makes heads turn when I pass by.
FMF Racing® - Factory 4.1 SL™ 4-Stroke Silencer
Posted by Barbara (Minotola, NJ) / March 03, 20202005 Yamaha YFZ450
5 of 5
High-Performance Exhaust
This exhaust is shorter and lighter than my original muffler, and sits closer to the engine. My YFZ450R breathes easier with this exhaust, resulting in a significant power boost, especially at higher RPMs. And yeah, the carbon-fiber exhaust cap looks really cool.
FMF Racing® - Factory 4.1 RCT™ Slip-On Muffler
Posted by Kathleen (Washington Dc., DC) / May 06, 20192011 Yamaha YFZ450R
5 of 5
Moderate Sound and Performance
Easy-to-install product with a bit more powerful sound at low RPMs. Expected it to sound more aggressive at higher RPMs. Pleased with its finish and look.