GM Duramax LML 4″ Race Exhaust System, 2011–2015 (2500/3500)

A 4-inch stainless steel exhaust system for 2011–2015 GM 2500 and 3500 trucks with the 6.6L Duramax LML. Built to replace the factory piping with a larger, less restrictive system.

• Fits 2011–2015 GM Duramax LML 6.6L, 2500/3500
• 4-inch diameter piping
• Stainless steel construction for corrosion resistance

Racing and Off-Road Use Only: This product is intended solely for competition, racing, and off-road vehicles. It is not intended for installation or use on any vehicle registered or operated on public roads or highways. The purchaser is responsible for ensuring compliance with all applicable federal, state, and local laws.