2001-2015 GM Duramax 6.6L Race Manifolds & Up-Pipes
High-Flow Exhaust Manifolds and Up-Pipes have a 53% greater flow over stock!
The High-Flow Race Exhaust Manifolds with Up-Pipes for your 2001-2015 GM /Duramax (single turbo) are designed to maximize power and flow characteristics in your truck. Featuring durable, high flow Up-Pipe bellows that are internally sleeved and aircraft grade with an increased inner diameter which all together increases flow by over 20%. The entire Manifold and Up-Pipe exhaust system is designed to lower exhaust gas temperatures, reduce drive pressure, and accelerate turbo spool-up while maintaining reliability.
Manifolds are made from high-quality cast iron and the Up Pipes are made from 11 gauge 304 stainless steel. The aircraft grade 304 stainless steel Up-Pipe bellows are high-flow, internally sleeved, and have an increased inner diameter.
Available for 2001-2015 Duramax equipped trucks. E.O No. D-701-6
NOTICE: LMM trucks require heater modifications on driver's side. Call for details.
Cast Hi-Sil Moly iron high-flow manifold construction
Significant reduction in exhaust back pressure
Free-flowing stainless steel inner liner bellows
Stainless steel 11-gauge .120-inch wall diameter Up-Pipes