Rudy's High Temp Coated Exhaust Manifolds & Up Pipes For 01-04 LB7 6.6L Duramax interior After thousands of man-hours on

After thousands of man-hours on the dyno and crunching data in the engineering office

Only a 2% difference from front to rear cylinders in air flow

Max Tire Size: Up to 35" (trimming may be required)

All Springs Included in Box

Rudy's High Temp Coated Exhaust Manifolds & Up Pipes For 01-04 LB7 6.6L Duramax interior After thousands of man-hours onRudy's is proud to announce the release of our new high flow race exhaust manifolds and up pipes. These parts are designed for use on your 2001 2004 GM 6. 6L LB7 Duramax diesel truck. The up pipes feature heavy duty bellows that are internally sleeved and are manufactured from aircraft grade material. These manifolds and up pipes are designed to lower EGT's, reduce drive pressure and accelerate turbo spool up time all while maintaining reliability!