M4 BLACK GP19 SLIP-ON

  • Sale
  • $377.00
  • Regular price $419.00


  • 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
  • Stage 2 Quiet Insert Q3 Sold Separate