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Wehrli

High Flow Bundle Kit Stage 3 for 2006-2007 Duramax LBZ Gun Metal

$2,705.00 $2,643.08 Save $61.92

SKU: W005 100503-GM

In Stock
In Stock
Ships by Jun 10
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Stage 3 upgrade for 2006-2007 LBZ 6.6L Duramax Chevrolet Silverado/GMC Sierra 2500/3500 HD. Combines Stage 2 High Flow Bundle with a 3-inch Stainless Steel Down Pipe. Increases air/exhaust flow, improving efficiency, throttle response, and turbo spool up. Addresses factory design weaknesses causing power loss, boost leaks, and failures.

Fitment

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Specifications

BrandWehrli
Part NumberW005 100503-GM

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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