Factory4.1 SL (Slip-On) 041291 Color:No Color -Less sound equals more ground

-Less sound equals more ground

and stainless steel mounting strap that paves the way for the garage mechanic to fit the unit onto their machine

works and fits FMF or stock

Black Stone Washed Finish

-Hand pounded seams for smooth flow transitions

Factory4.1 SL (Slip-On) 041291 Color:No Color -Less sound equals more groundThe Factory 4. 1 is FMF Racing's premier performance exhaust. With 30 years of racing experience behind it, the Factory 4. 1 takes advantage of everything we've learned on the race track. Available in natural or blue anodized finish. Horsepower gains throughout RPM range. Available with titanium or high strength stainless steel midpipe. 94dB Insert Included