High Flow Bundle Kit Stage 3 for 2006-2007 Duramax LBZ WCFab Grey

Name: High Flow Bundle Kit Stage 3 for 2006-2007 Duramax LBZ WCFab Grey
Brand: Wehrli
SKU: W005 100503-GRY
Price: 2769.35 USD
Availability: InStock

$2,860.00 $2,769.35 Save $90.65

SKU: W005 100503-GRY

In Stock

Ships by Jun 9

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Non-Returnable Item

DIY PRO SHOP

Moderate — 2–4 hours

Description

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 aims to increase air and exhaust flow for the turbo and engine, resulting in improved efficiency, throttle response, and turbo spool-up. It eliminates weak points in the factory design that can lead to lost power, boost leaks, and failures in hard-working and high-performance applications.

Fitment

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Specifications

Brand	Wehrli
Part Number	W005 100503-GRY

Videos

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Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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