Breakdown of Included Items

Flowmaster 737857 Signature Series Cat-Back Exhaust System Features:

• +9 horsepower (HP)/+10 ft.-lbs. torque (TQ)
• TIG welded 304 Stainless Steel muffler
• Aggressive to moderate performance tone and increased performance over the stock system
• Direct-fit system
• Quick and easy installation

Flowmaster 737857 Signature Series Cat-Back Exhaust System Fitment Notes:

• Fits 2014-2018 GM Silverado/Sierra 1500 4.3L & 5.3L engines, 2/4 Wheel Drive, 143.5 and 153 in. Wheelbases
• Fits 2019 GM 1500 (Legacy body only) 5.3L, 4WD, extended cab w/143.5 in. Wheelbase

Emissions Note:

This part is legal for sale or uses on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART