Exhaust Headers, Manifolds and Components

Wehrli

Wehrli Billet Exh Manifold Stainless Up Pipe KT w Gaskets Hardware 01-04 D-Max Black 100174

$1,930.20

SKU: W005 100174

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In Stock
Ships by Jun 14
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Non-Returnable Item
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Description

WCFab's 2001-2004 LB7 Duramax Billet Exhaust Manifolds replace the restrictive factory cast parts with high-strength, TIG-welded high-flow billet steel components, designed to enhance exhaust flow characteristics, improving turbo spool up, lowering EGTs and increasing power and economy. This kit includes new gaskets, ARP 12PT fasteners, and assembly lube. The manifolds are finished in Black Ceramic Coat rated for 1800ºF. The heavy-duty 11 gauge 2" Stainless up pipe kit features HD Stainless Bellows that will not crack and leak like OEM, increasing turbo spool-up and decreasing EGTs.

Fitment

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Specifications

BrandWehrli
Part NumberW005 100174

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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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