PPE High Flow Exhaust Manifold with Up-Pipes, 2001-2004 LB7 Federal Emissions

Fits: 2001 thru 2004 Chevy Silverado/GMC Sierra 2500HD/3500HD LB7 Duramax Diesel

*Federal Emissions Only*

PPE’s High-Flow Exhaust Manifolds and Up-Pipes have a 53% greater flow over stock and are 50 State emissions legal(2001-2004 Federal Emissions only).

PPE 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.

Features:

• 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
• Built in bosses, pre-drilled and tapped 1/8" NPT for EGT gauge
• 50 State Legal CARB EO# D-701-19

Options:

• Raw Manifolds (Part# 116111000)
• Silver Ceramic Coated Manifolds (Part# 116111035)
• Black Ceramic Coated Manifolds (Part# 116111020)
• Max-Flow Exhaust Manifold Blankets
• Max-Flow Up-Pipe Bolts