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Est. 1957
Wehrli

Wehrli 01-04 Chevrolet 6.6L LB7 Duramax High Flow Intake Bundle Kit - Candy Teal

$2241.54

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Fits 2001-2004 Chevy Silverado and GMC Sierra HD with 6.6L LB7 Duramax. Stage 3 high flow intake bundle in Candy Teal with 4-inch intake, Y-bridge, and 3-inch downpipe.

Key Features

  • Fits 2001-2004 Chevrolet Silverado 2500 HD, Silverado 3500, GMC Sierra 2500 HD, and Sierra 3500 with LB7 Duramax
  • Complete Stage 3 bundle with intake, horn, Y-bridge, intercooler pipes, and downpipe
  • 4-inch fabricated aluminum intake with smooth aerodynamic bends
  • 10-gauge aluminum airbox routes cold air through the inner fender
  • Dry filter and hydrophobic Outerwears pre-filter cover protect MAF and turbo
  • TIG-welded, CNC-machined billet Y-bridge with full 3-inch intake tract

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Advanced difficulty to install

Multi-component replacement of factory intake, intercooler piping, Y-bridge, and downpipe. Diesel truck mechanical experience is recommended.

About this part

Product Details

Wehrli Custom Fab's Candy Teal powder coat gives this Stage 3 High Flow Intake Bundle a standout look on the 2001-2004 Chevrolet Silverado 2500 HD, Silverado 3500, GMC Sierra 2500 HD, and Sierra 3500 with the 6.6L LB7 Duramax. Under the finish, this is the same proven Stage 3 package that replaces the factory intake, intercooler piping, Y-bridge, and downpipe in one comprehensive kit.

The intake side features 4-inch fabricated aluminum piping with smooth aerodynamic bends that replace the restrictive plastic factory parts. A 10-gauge aluminum airbox draws cold air through the inner fender, and the included dry filter with hydrophobic Outerwears pre-filter cover keeps contaminants out of your MAF sensor and turbo. The 4-inch high flow turbo intake horn removes the factory restriction point, improving spool and top-end performance with OEM and IHI-style turbochargers.

On the intercooler side, 3-inch mandrel-bent aluminum pipes replace both hot and cold side factory piping, feeding a TIG-welded, CNC-machined billet Y-bridge. This creates an uninterrupted 3-inch path from turbo to engine intake, which helps throttle response and can lower EGTs. The 3-inch downpipe runs straight compared to the factory unit and ships in black ceramic coat with heat wrap for temperature management.

Silicone boots rated above factory pressure and temperature thresholds connect everything securely with stainless steel T-bolt clamps. An FPRV block-off kit is included for clearance with the larger Y-bridge. All hardware and gaskets are in the box. Not recommended for S300 or S400 turbochargers. Not CARB-approved.

Specifications

Brand
Wehrli
Manufacturer Part #
WCF100712-CT
UPC
WCF100712-CT

Frequently Asked Questions

Wehrli 01-04 Chevrolet 6.6L LB7 Duramax High Flow Intake Bundle Kit - Candy Teal

$2241.54