01-04 LB7 Duramax Max-Flow Race Series Manifold and Up Pipe Kit

Discontinued (Updated 9/26/2024)

Max-Flow Race Series Manifold & Up Pipe Kit

Fits 2001-2004 Silverado/Sierra 6.6 Duramax w/Federal Emissions

Introducing The Max-Flow Diesel Up Pipes and Manifolds.

Providing up to an incredible 55% increase in air flow over stock. These Manifolds are made tough using high quality Silica Moly Cast Iron. Up-Pipes are made with .120" wall thickness 304 Stainless Steel and internally sleeved bellows for superior flow and strength.

The Max-Flow Manifold has been meticulously designed to increase the engines output through increased airflow. Max-Flow manifolds are designed to have a gradual increase in internal diameter as more exhaust ports are added. This allows for added volume within the manifold while keeping the maximum velocity possible. Due to the heat and energy of the exhaust gasses being expelled, expansion will occur within the Manifolds and Up Pipes which can cause an even stronger spool up through the Turbine side of the Turbo. With an increasing diameter of the Manifold you will be able to send these hot exhaust gasses through the turbine as fast as possible making it easier for the Turbo to spool. The material also has the ability to retain heat ensuring the heat stays within the Manifolds. Better spool times have been seen with these Manifolds over Aftermarket Headers because the Headers will actually increase the distance the gases needed to travel causing some cooling before the exhaust gases hit the Turbo Charger.

Features / Benefits:

Reduced Back pressure

Better Fuel Economy

Quicker Spool Up and Lower EGT's

EGT Probe port pre-molded and tapped in each manifold for convenience and increased strength

Kit Includes:

Right and Left Max-Flow Manifolds

Right and Left Max-Flow Up Pipes

16x Exhaust Manifold Bolts

2x Brass EGT port plugs

​Optional Gaskets: (All gaskets recommended for install)

Up-pipe gasket set (4 gaskets)

Engine Block to Manifold Gasket set (2 gaskets)

Optional Ceramic Coating:

Provides superior corrosion protection

Reduces thermal temperatures under hood

Keeps your manifolds looking amazing for many years

Notes:

We also recommend the Downpipe bracket for customers running this kit with a PPE Downpipe

PPE downpipe is recommended for LB7 engines to ensure correct spacing and clearance

Some downpipes will require slight modification for correct clearance

LMM's will require modified coolant tube for proper clearance

To reduce thermal temperatures under the hood pair with the Max-Flow Manifold Blankets

*This product is ONLY designed for closed course racing where it is legal to do so. Any other use will be in violation of local, state, and federal laws. We are not responsible for unlawful use of this product.*

*NOT LEGAL FOR SALE OR USE IN CALIFORNIA. THE MANUFACTURE, SALE, OFFER FOR SALE, OR INSTALLATION OF THIS PRODUCT MAY ALSO BE ILLEGAL NATIONWIDE UNDER THE FEDERAL CLEAN AIR ACT (42 U.S.C. § 7522(A)(3))*

DmaxStore Part Number: MAX-MFM-0104