FMF Racing Factory 4.1 RCT Titanium With Carbon End-Cap Full System MX Exhaust Rails & Accessories 56% Polyester

56% Polyester

NoSweat 3-layer molded face foam

In 2010 the RS-4 muffler helped Ryan Dungey claim the AMA 450 Supercross and Motocross championships in his rookie season

Renthal 520 KTM Steel Front Sprocket

Zipper and button snap closures

FMF Racing Factory 4.1 RCT Titanium With Carbon End-Cap Full System MX Exhaust Rails & Accessories 56% PolyesterFMF Factory 4. 1 RCT Full System If you are looking to drop weight, improve looks and most importantly improve your bikes power band then look no further. The FMF Factory 4. 1 RCT full system is constructed from aerospace grade materials that meet FMF's exacting specifications and is 100% manufactured in their Southern California factory. The patented MegaBomb header design allows exhaust gases to expand, cool and ramp back up at a higher velocity.