HomeShop by DepartmentPerformanceExhaustDown PipesWC Fab S300 3" Down Pipe 2005-2016 GM 6.6L Duramax

WC Fab S300 3" Down Pipe 2005-2016 GM 6.6L Duramax

Thoroughbred Sku #: WCF100122

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Product Details

Product Name: WC Fab S300 3" Down Pipe 2005-2016 GM 6.6L Duramax
Manufacturer: WC FAB
Manufacturer Part #: WCF100122
Thoroughbred Diesel Part #: WCF100122
Fitment Notes: 2005-2016 GM 6.6L Duramax

LLY / LBZ / LMM / LML Duramax 3" Down pipe for S300 Turbo with HX40 style exhaust outlet flange. T4 Pedestal height must be between 5-6" tall for proper fitment. Lower flange of down pipe mates to exhaust system V-band style flange.

Features:

3" Down Pipe (HX40 Style Flange)
V-band Clamp
Heat Wrap & Clamps
High Temp Coating
Made in USA

12 Months Warranty - https://www.wcfab.com/ft-3087-wcfab-limited-product-warranty.html

Note (Current WC Fab Lead Times):

In Stock Items: 7-10 Business Days
Most Built to Order Powder Coated Items: 10-15 Business Days
Traction Bars: 10-15 Business Days

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I’m running the ppe t4 pedestal with s369 on lbz duramax should I buy the spacers in between turbo and pedestal? It says must be 5-6 inches high

Connor hovey | 5/15/2026
T4 Pedestal height must be between 5-6" tall for proper fitment.

WCF100122