FMF Factory 4.1 Full Exhaust System

FMF’s Factory 4.1 Full Exhaust System incorporates a full titanium MegaBomb header to extract exhaust gases as efficiently as possible. The entire exhaust systems helps to lower decibels without compromising power output. In addition, the muffler features a titanium sleeve with a stainless steel end cap to reduce mass as much as possible which in turn, helps to improve handling. The Factory 4.1 full titanium exhaust system is constructed from only aerospace grade materials that meet the California company’s exacting specifications.

Each exhaust comes with FMF’s proprietary Titanium MegaBomb header. The science behind the Titanium MegaBomb header actually reduces noise levels by as much as 1.5 dB when compared to conventionally-shaped headers to keep race and track officials happy. In addition, the headers are designed to produce more low end to mid range gains as well as broadening out the mid to top end power gains when compared to the stock exhaust layout.

Massive power gains throughout the RPM range

MegaBomb header for the ultimate in power output

Huge weight savings when compared to the stock exhaust

Fabricated using the highest quality proprietary blend of alloy grade materials

FMF RTS (Rapid Tuning System) makes for easy exhaust insert changes

Comes with all required mounting hardware and easy-to-follow installation instructions

FMF 94 dB quiet insert available (sold separately)

Made in the USA

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