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Air and Fuel Superchargers, Turbochargers and Components

Wehrli

Wehrli S400 Single Turbo Install Kit for 2001-2004 Duramax LB7 Gloss White Gloss White 100489-GW

$3,295.00 $3,196.15 Save $98.85

SKU: W005 100489-GW

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In Stock
Ships by Jun 15
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Chevrolet Silverado 3500 HD Turbo Install Kit by Wehrli - S400 in Gloss White for `01-`04 models is an upgrade for the 6.6L LB7 Duramax diesel engine. This kit enables a seamless transition from the stock IHI turbo to a Borg Warner S400 setup, ensuring higher performance and efficiency. It enhances the air cleaner system with a larger 5" aluminum intake, a heavy-duty air box, and a high-performance dry filter. The intercooler hot and cold-side charge pipes are high-flow 3" diameter 14 gauge aluminum tubes, improving airflow. The kit includes a high-flow 3" fabricated billet y-bridge kit, replacing the restrictive stock upper intake manifold for optimal horsepower and efficiency. High-quality stainless steel braided oil lines ensure a reliable oil feed, and the turbo downpipe integrates effortlessly with the existing exhaust system, eliminating the need for modifications.

Fitment

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Specifications

BrandWehrli
Part NumberW005 100489-GW

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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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