11-15.5 Chevy Silverado GMC Sierra 6.6L LML Duramax 3" Turbo Downpipe

Fabricated from premium, high-grade stainless steel to ensure exceptional structural strength and long-term thermal durability.

High-flow 3.0-inch racing downpipe upgrade delivers 20% more airflow capacity compared to the restrictive factory pipe.

Optimizes exhaust gas scavenging to unleash additional horsepower, maximize torque, and enhance overall engine efficiency.

Engineered with a smooth interior profile to maintain an unrestrictive, high-velocity exhaust flow pathway.

Substantially minimizes exhaust system backpressure, helping to lower exhaust gas temperatures (EGTs).

Important Fitment Note: Only compatible with truck models equipped with a factory V-band clamp connection at the turbo outlet. Will NOT work for trucks equipped with a 3-bolt flange direct turbo pipe!

Fits: 2011, 2012, 2013, 2014, and early 2015 (Up to mid-2015.5) Chevy Silverado and GMC Sierra 2500HD / 3500HD 6.6L LML Duramax Diesel pickup trucks.

Note: Will NOT fit Cab & Chassis models.