There are 226 products.
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 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 Full Stainless System Standard style muffler Stainless steel tubing 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 Does not include quiet insert Stage 1 Q5 and stage 2 Q4 quiet insert sold separately
M4 Full Stainless System Standard style titanium 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 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 Cat Eliminator Slip-On Exhaust Features: Standard style titanium slip-on muffler with carbon fiber end cap 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 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 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 Full Stainless System With GP19 Muffler Black ceramic coated GP19 style muffler Stainless steel tubing Saves 30 lbs over stock Produces close to 8 more horsepower over the stock system Pre-installed with stage 1 Q1 quiet insert Stage 2 Q3 quiet insert sold separately
M4 Full Stainless System With GP19 Muffler Black GP19 style muffler Stainless steel tubing Saves 12 lbs over stock Stock 95 dB @7,000 RPM M4 112 dB @7,000 RPM Comes with M18 and M12 O2 bung Pre-installed with stage 1 Q1 quiet insert Stage 2 Q3 quiet insert sold separately
M4 Full Stainless System With GP19 Muffler Black GP19 style muffler Stainless steel tubing Saves 9.5 lbs over stock Stock 95 dB @7,000 RPM M4 112 dB @7,000 RPM Comes with M18 and M12 O2 bung Pre-installed with stage 1 Q1 quiet insert Stage 2 Q3 quiet insert sold separately
M4 Full Stainless System With GP Muffler Black ceramic coated GP muffler Stainless steel tubing Saves 11.6 lbs over stock Stock 93db @ 7,000 RPM/ M4 113db @ 7,000 RPM Stock max horsepower 171.42 @ 12,760 RPM/ M4 max horsepower 176.55 @ 12,780 RPM Includes M18 and M12 O2 bungs Comes pre-installed with stage 1 Q1 quiet insert Stage 2 Q3 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
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 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 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 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 Stainless System With Street Slayer Muffler Street slayer style titanium muffler Stainless steel tubing Does not include quiet insert Stage 1 Q8 and stage 2 Q6 quiet insert sold separately
M4 Full Stainless System With Street Slayer Muffler Street slayer style carbon fiber muffler Stainless steel tubing Does not include quiet insert Stage 1 Q8 and stage 2 Q6 quiet insert sold separately
M4 Full Stainless System Standard style muffler Stainless steel tubing Does not include quiet insert Stage 1 Q5 and stage 2 Q4 quiet insert sold separately
M4 Full Stainless System Hip shorty look slip-on Black ceramic coated 304 stainless steel +5 hp over stock system Saves 6 lbs over stock Does not include quiet insert Stage 1 Q10 quiet insert sold separately