Skip to main content
Wehrli 100435 Stage 2 High Flow Intake Bundle Kit | 2001-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7, image 1 of 4
1 / 4

Wehrli 100435 Stage 2 High Flow Intake Bundle Kit | 2001-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7

Sold by Alligator Performance

Sponsored
$1,663.55

Price and availability requested live for this page. Final details are set by the seller.

Opens alligatorperformance.com in a new tab. The seller handles checkout, shipping, and returns.

StorkScout may earn money from Shopify when you buy through product links. Sponsored results are labeled, and compensation never determines the Weekly Edit. How we make money

Share

A closer fit

Find this, but…

Start with this listing, then change what matters. Matches come live from independent Shopify shops and are separate from StorkScout’s Weekly Edit.

Searches start with new, available products that ship to and from the U.S.

What would suit you better?

Try “folds for air travel” or “same shape, without plastic.”

About this product

Features:
  • 3" Fabricated Y-Bridge (for OEM style intake horn)
  • 3" Passenger (Cold) Side Intercooler Pipe
  • 3" Driver (Hot) Side Intercooler Pipe
  • 4" Intake Pipe
  • Air Box with Lid
  • Dry Air Filter
  • Outerwear's Pre-Filter Cover
  • 3 1/2" Intake Horn
  • 14 ga Aluminum Construction
  • FPRV Block Off Kit
  • O-Ring Bridge Flange Gaskets
  • Map Sensor Seal and Hold Down Bracket
  • Silicone Boots
  • T-Bolt Clamps
  • Durable Custom Powder Coat Finish
  • Made in USA
WCFab 2001-2004 GM LB7 6.6L Duramax Stage 2 High Flow Intake Bundle Kit

Stage 2 upgrade for the 2001-2004 LB7 Duramax combines our Stage 1 High Flow Bundle and Stage 2 Intake Kit 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.

The high flow, fabricated aluminum intake pipe and air box enclosure with dry filter assembly replaces the restrictive plastic factory parts on your diesel for improved engine performance. All new design significantly increases air flow to your turbo producing improved horsepower and torque, quicker throttle response, and cooler intake temperatures by drawing cold air through the inner fender. All aluminum construction features large diameter 4" piping with smooth aerodynamic bends to improve intake air velocity, volume, and provide more aggressive engine and turbo sound during acceleration.

Removable air box lid element allows for easy visual inspection and maintenance of your WCFab filter with included hydrophobic pre-filter cover, to help keep your MAF sensor, turbo, and engine airways contaminant free.

Includes High Flow 3.5 in. Turbo Intake Horn which removes restrictions in the OEM setup to improve turbo spool and top end power. This High Flow 3.5 in. horn is fully compatible with OEM and upgraded drop in IHI style turbochargers.

Kit includes upgraded high quality silicone boots that withstand higher pressures and temperatures than the failure prone, angled factory parts to increase reliability and help eliminate boost leaks. Includes Fuel Pressure Regulator Valve (FPRV) Block Off Kit to allow proper clearance to larger diameter Y-Bridge assembly.

Full assembly finished in your choice of WCFab's signature custom powder coat colors for a look as unique as your truck. Save up to $108.00 versus buying components individually.

NOTE: 
  • Not Compatible BANKS INTERCOOLER assemblies. If you have a Banks intercooler, please use call to order.
  • NOT RECOMMENDED FOR USE WITH S300 OR S400 STYLE TURBOCHARGERS. If you are planning to run a turbo other than an OEM / IHI style upgraded drop in on your setup, please check out our S300 Single Turbo Kit WCF100478 and our S400 Single Turbo Kit WCF100489 or call us for help placing your order.

Description supplied by Alligator Performance through its current Shopify listing. Product, performance, and health claims are the seller’s and have not been independently verified by StorkScout.

Keep exploring

Related current listings to open on StorkScout and compare before visiting a seller.

Current listing
$1,663.55
Shop at Alligator Performance