Wehrli 06-07 Duramax LBZ High Flow Bundle Kit Stage 3 - Gloss Black

The Stage 3 upgrade for the 2006-2007 LBZ 6.6L Duramax equipped Chevrolet Silverado or GMC Sierra 2500/3500 HD truck combines Wehrli's popular Stage 2 High Flow Bundle with a 3" Stainless Steel Down Pipe. This kit provides increased air and exhaust flow for improved efficiency, throttle response, and turbo spool up, eliminating weak points in the factory design. It replaces restrictive plastic factory parts with a high-flow fabricated intake pipe, intake horn, and air box enclosure with a dry filter assembly. The kit is compatible with stock trucks and requires no tuning. It comes in a custom powder coat finish.