Wehrli Custom Fab WCF100188-FTB Thermostat Housing - Fine Texture Blk CORE-150 The housing incorporates factory air

The housing incorporates factory air scoop inlets

All aluminum construction features large diameter 4" piping with smooth aerodynamic bends to improve intake air velocity

Saves brake wear-and-tear

high energy clutch material

Keeping the Intake Tube a half inch bigger than the stock throttle body in anticipation of aftermarket offerings

Wehrli Custom Fab WCF100188-FTB Thermostat Housing - Fine Texture Blk CORE-150 The housing incorporates factory airEnhance the appearance of your GM 6. 6L Duramax L5Ps engine bay with the Wehrli Custom Fab WCF100188 FTB Thermostat Housing Fine Texture Blk from GAP. This WCFab Thermostat Housing is a direct replacement upgrade for the OEM part. Comes powder coated in a Fine Texture Blk to complement other upgrades such as WCFab Upper Coolant Pipes, Intake Kits and Intercooler Piping. Features: Fine Texture Blk Powder Coat Finish Cleans Up Engine Bay Appearance