531111-601NM Mel's Manufacturing 5" Down Pipe Back Exhaust - Aluminized GMC/Chevy 6.6L Duramax 2001-2007

Increase your turbo boost pressure to approximately 28-30psi with a quick 5 minute installation of PPE's boost increase valve for your 2001 - 2004 GMC Duramax LB7 truck.

S&B's pre-oiled and re-washable Cold Air Intake System for 2006-2007 GMC/Chevy 6.6L Duramax LBZ diesels outflows the stock intake by 50.15% while maintaining a 99.41% efficiency rating @ 653 CFM. A "must have" for modified and even stock powered trucks.

Fits 5"" Exhaust Systems5" Inlet / 8" Outlet / 15" Length Rolled Angle Cut

Mel's Manufacturing 3" T-409 Stainless Steel replacement turbo direct pipe for 2004.5-2010 GMC/Chevy Duramax 6.6L LLY, LBZ, and LMM engines.

This dual wall MBRP exhaust tip fits 5" exhaust systems - it has a 5" inlet, 6" outlet, and is 12" long with an angled, double wall, polished stainless finish. No welding required.

2004.5-2010 GMC Chevy 6.6L Duramax LLY/LBZ/LMM - Replace that restrictive factory down pipe with a MBRP direct replacement down pipe for more flow, fuel economy, and better performance.