21-22 Kawasaki ZX-10R M4 GP19 Stainless Full System With Black Muffler
M4 GP19 Stainless Full System With Black Muffler Stainless Steel Tubing GP19 Style Canister Saves 12 lbs Over Stock Stock 95 dB @7,000 RPM M4 112 dB @7,000 RPM Pre-Installed with Q1 Quiet Insert Comes with M18 and M12 O2 Bung Q3 Stage 2 Quiet Insert Sold Separate