IN STOCK M4 Exhaust GP19 Black Slip On ZX10R 2021-2025 2026 KA9942-GP19

• IN STOCK READY TO SHIP OR PICK UP
• Saves 10.9 lbs Over Stock
• Removes Exhaust Valve
• Eliminates CAT
• Comes with M18 O2 Bung
• Stock 95 dB @7,000 RPM
• M4 112 dB @7,000 RPM
• Stock Max HP 170.4 @11,800 RPM
• M4 Max HP 172.7 @11,800 RPM
• Comes with Q1 Quiet Insert

*Does not meet emission requirements for street or highway use.