These FMF Racing Factory 4.1 slip-on mufflers are FMF's premier exhaust systems. They are the perfect exhausts for the track or the dunes, and are used by factory teams such as KTM, Epic Can-Am, and Rath Racing. They are made of durable stainless steel to withstand major abuse. So, if you're looking for an elite-quality exhaust that will provide you with huge horsepower gain across all rpm ranges, these FMF Racing Factory 4.1 slip-on mufflers have you covered.
Bike Fitments 2006-2013 Honda TRX450ER Electric Start 2004-2009 Honda TRX450R
Titanium canister shape and size is lighter and more performance-optimizing
Front and rear end cap designs developed to enhance fit, function and style
Fixed, specific mounting brackets for slip-ons and full systems