High Flow Exhaust Manifolds & Up Pipes for 6.6 Duramax 2001-2004 LB7

This set of exhaust manifolds and up pipes makes a significant difference in the flow of your exhaust system pre-turbo. This system will reduce EGT's and help your engine come alive!

• Manifolds Cast From Ductile Iron
• Up Pipes Manufactured from 304SS Heavy Wall Tube
  
• 1/8" NPT bungs for probes
• Heavy Duty Gaskets

Includes:
2x Fabricated High Flow Exhaust Up Pipes 
2x Cast High Flow Exhaust Manifolds
2x Exhaust Manifold Gaskets
4x Exhaust Up Pipe Gaskets
28x 12 Point M10 Mounting Hardware
2x 1/8" NPT Plugs

Fits: 2001-2004 Chevy/GMC 6.6l Duramax LB7 engines in 2500 & 3500 applications.

May also fit non emissions 2004.5-2016 LLY LBZ LMM LGH & LML engines.

Note: 2015+ may require modification of the shock mount.