2017-2023 6.6L Duramax L5P 3.5" Downpipe w/ EGR Cooler Delete Kit

Replaces the restrictive factory downpipe with larger, smoother 3.5-inch tubing to improve exhaust flow directly after the turbocharger and reduce backpressure.

Completely eliminates the factory EGR cooler to help prevent hot exhaust soot from entering the intake system, reducing carbon buildup and keeping intake components cleaner.

Promotes improved exhaust flow that reduces heat buildup after the turbocharger, helping support lower operating temperatures during heavy loads.

Delivers a smoother exhaust path that reduces restriction at the turbo outlet, supporting improved turbo response and overall airflow efficiency.

Fit: 2017-2023 6.6L Silverado and Sierra Duramax L5P 2500HD/3500HD diesel engine trucks (Does NOT fit Cab & Chassis commercial-style trucks).