WCFab 2001-2004 GM LB7 6.6L Duramax Stage 3 High Flow Intake Bundle Kit Stage 3 upgrade for the 2001-2004 LB7 Duramax combines the Stage 1 High Flow Bundle, Stage 2 Intake Kit, and 3" Down Pipe into a single package providing increased airflow for your turbo and engine for improved efficiency, throttle response, and turbo spool up. This kit replaces the restrictive OEM LB7 Y-Bridge, passenger side intercooler pipe, and driver side intercooler pipe with a high flow, 3 mandrel bent aluminum piping kit feeding WCFab's signature TIG welded, CNC machined billet y-bridge base to help increase throttle response, turbo spool up, and reduce EGTs by creating a full 3" intake tract between your turbo and engine.

Additional Information

Wehrli Custom Fab High Flow Bundle Intake Kit Stage 3, 01-04 Duramax LB7, Illusion Blueberry

Part Type

Intercooler Pipe Set

Features and Benefits

• 3" Cold Side Intercooler Pipe
• 3" Fabricated Billet Y-Bridge
• 3" Hot Side Intercooler Pipe
• 3" Turbo Downpipe
• 4" Intake Horn
• 4" Intake with Air Box
• Dry Air Filter with Outerwears Pre-Filter Cover
• Durable Custom Powder Coat Finish
• High Quality Silicone Boots and Stainless Steel T-Bolt Clamps
• Installation Hardware and Gaskets

• 3" Cold Side Intercooler Pipe
• 3" Fabricated Billet Y-Bridge
• 3" Hot Side Intercooler Pipe
• 3" Turbo Downpipe
• 4" Intake Horn
• 4" Intake with Air Box
• Dry Air Filter with Outerwears Pre-Filter Cover
• Durable Custom Powder Coat Finish
• High Quality Silicone Boots and Stainless Steel T-Bolt Clamps
• Installation Hardware and Gaskets

Please note that this information serves as a fitment guide only. For specific fitment questions or clarifications, please contact us, as manufacturers may introduce variations and modifications during model year or regional revisions. While we strive to provide accurate data, fitment details may vary by region; therefore, compatibility outside the listed region and submodel variant cannot be guaranteed.