There are 226 products.
M4 Full Stainless System With X96 Muffler X96 style carbon fiber muffler Stainless steel tubing Saves 12 lbs over stock Adds 7.9 horsepower at 15,600 RPM Comes with M18 O2 bung and plug Kit Does not include quiet insert Stage 1 Q8 and stage 2 Q6 quiet insert sold separately
M4 Full Titanium System With X96 Muffler X96 style carbon fiber muffler Titanium tubing Saves 14 lbs over stock Adds 7.9 horsepower at 15,600 RPM Comes with M18 O2 bung and plug Kit Does not include quiet insert Stage 1 Q8 and stage 2 Q6 quiet insert sold separately
M4 GP Style Slip-On Exhaust Features: Black ceramic coated GP style slip-on Does not include quiet insert Stage 1 Q1 and stage 2 Q3 quiet insert sold separately
M4 Muffler Box Eliminator Kit Removes stock muffler box with cutting of the stock exhaust system Stainless steel tubing Fits stock mufflers and most aftermarket ones
M4 Street Slayer Slip-On Exhaust Features: Street slayer style carbon fiber muffler Comes with stage 1 Q5 quiet insert Optional stage 2 Q4 quiet insert sold separately
M4 Street Slayer Slip-On Exhaust Features: Street slayer style carbon fiber muffler +3 hp over stock system Saves 8.5 lbs over stock Removes stock muffler box Requires cutting of the stock system at the muffler box Comes with stage 1 Q5 quiet insert Optional stage 2 Q4 quiet insert sold separately
M4 Full Stainless System Standard style muffler Stainless steel tubing Raised race mid-pipe and race bracket Removes passenger foot peg Does not include quiet insert Stage 1 Q5 and stage 2 Q4 quiet insert sold separately
M4 Full Stainless System With GP Muffler Black ceramic coated GP style muffler Stainless steel tubing Comes with stage 1 Q1 quiet insert Stage 2 Q3 quiet insert sold separately
M4 Full Stainless System Standard style muffler Stainless steel tubing Raised race mid-pipe and race bracket Removes passenger foot peg Does not include quiet insert Stage 1 Q5 and stage 2 Q4 quiet insert sold separately
M4 Full Stainless System Standard style muffler Stainless steel tubing Raised race mid-pipe and race bracket Removes passenger foot peg Does not include quiet insert Stage 1 Q5 and stage 2 Q4 quiet insert sold separately
M4 GP Slip-On Exhaust Black ceramic coated muffler Comes with stage 1 Q1 quiet insert Optional stage 2 Q3 quiet insert sold separately
M4 Cat Eliminator Slip-On Exhaust Features: Standard style carbon fiber slip-on muffler Stainless steel tubing Eliminates stock catalytic converter Does not include quiet inserts Stage 1 Q8 and stage 2 Q6 quiet inserts sold separately (2 required)
M4 Cat Eliminator Slip-On Exhaust Features: Standard style titanium slip-on muffler Stainless steel tubing Eliminates stock catalytic converter Does not include quiet inserts Stage 1 Q8 and stage 2 Q6 quiet inserts sold separately (2 required)
M4 Slip-On Exhaust Features: Standard style carbon fiber slip-on muffler Stainless steel tubing Retains stock catalytic converter Does not include quiet inserts Stage 1 Q8 and stage 2 Q6 quiet inserts sold separately (2 required)
M4 Slip-On Exhaust Features: Standard style titanium slip-on muffler Stainless steel tubing Retains stock catalytic converter Does not include quiet inserts Stage 1 Q8 and stage 2 Q6 quiet inserts sold separately (2 required)
M4 Full Stainless System With Standard Muffler Carbon fiber muffler Stainless steel tubing Saves 10lbs over stock and has a power increase of 16 horsepower Compatible with stock passenger foot peg or supplied race bracket Stage 1 Q5 and stage 2 Q4 quiet inserts sold separately
M4 Full Stainless System With GP Muffler GP style muffler Stainless steel tubing Saves 10.75lbs over stock while also producing 14 more horsepower Comes pre-installed with stage 1 Q1 quiet insert Stage 2 Q3 quiet insert sold separately
M4 Full Stainless System With Standard Muffler Polished muffler Stainless steel tubing Saves 10lbs over stock and has a power increase of 16 horsepower Compatible with stock passenger foot peg or supplied race bracket Stage 1 Q5 and stage 2 Q4 quiet inserts sold separately
M4 Full Stainless System With Standard Muffler Titanium muffler Stainless steel tubing Saves 10lbs over stock and has a power increase of 16 horsepower Compatible with stock passenger foot peg or supplied race bracket Stage 1 Q5 and stage 2 Q4 quiet inserts sold separately
M4 GP Style Slip-On Exhaust Features: Black ceramic coated GP style slip-on 7.3 horsepower over stock Removes stock exhaust valve Retains stock catalytic converter Comes with stage 1 Q1 quiet insert Optional stage 2 Q3 quiet insert sold separately
M4 Street Slayer Slip-On Exhaust Features: Street slayer style muffler +7 horsepower over stock Removes stock muffler box Does not include quiet insert Stage 1 Q8 and stage 2 Q6 quiet inserts sold separately
M4 Street Slayer Slip-On Exhaust Features: Street slayer style muffler +7 horsepower over stock Removes stock muffler box Does not include quiet insert Stage 1 Q8 and stage 2 Q6 quiet inserts sold separately
M4 Full Stainless System Standard style carbon fiber muffler Stainless steel tubing Compatible with stock passenger foot peg or supplied race bracket Does not include quiet insert Stage 1 Q5 and stage 2 Q4 quiet insert sold separately
M4 Full Stainless System With GP Muffler Black ceramic coated GP style muffler Stainless steel tubing Comes pre-installed with stage 1 Q1 quiet insert Stage 2 Q3 quiet insert sold separately