Grand National 50 State Mufflers - ChromeCaracteristicas: Improved horsepower and torque (when used with a Stealth Air cleaner kit; sold separately) Race inspired design Removable dB reducer for back pressure and sound tuning Meet J2825 levels for sound All hardware included Deep performance rumble replaces stock whisper tone No mapping required Sold in pairs Made in the U. S. A. Exempt per CARB Executive Order (E. O.) #K 010 16 for 18 20 models listed. Peso: 15. 8 Alto: 7. 0 Largo: 23. 9