The new Flowmaster® Flow FX® cat-back exhaust system for the 2011-2018 GM Silverado/Sierra 1500 trucks with the 6.2-Liter engine is manufactured using durable 409 stainless steel throughout and features 3.5-inch mandrel bent pipes for better exhaust gas flow, and a Flow FX "straight-through" muffler is used for a moderate sound level and maximum performance. Maximum increases on the dyno revealed +16 hp and +16 lb-ft at the rear wheels. This system exits out the side, behind the rear wheel with a 5.00-inch black ceramic tip for added style and a custom look. The system uses all the existing factory hanger locations and includes installation instructions and all necessary hardware for an easy installation that you can do at home. Backed by Flowmaster's Lifetime Limited Warranty.

Features

Max increases of up to 16 hp and 16 lb-ft. over the stock exhaust at the rear wheels

3.50-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability

A 5.00-inch black ceramic coated tip adds a custom look to the truck

Includes complete hardware and factory styled hangers in the stock locations for an easy installation

FlowFX “straight through” performance muffler delivers a deep, moderate performance tone and improves exhaust flow

Backed by Flowmaster’s Lifetime Limited Warranty