Wehrli Custom Fabrication WCF100478-BR LB7 Duramax S300 Single Turbo Install Kit Bronze

The Wehrli Custom Fabrication S300 Single Turbo Install Kit is a complete performance upgrade solution designed for 2001-2004 LB7 Duramax engines. This comprehensive kit replaces the restrictive factory IHI turbo setup with all the necessary components to install a larger BorgWarner S300-frame turbocharger, delivering significantly improved airflow and performance potential for high-horsepower diesel builds.

Complete Installation Package Includes:

• 4" intake system with fabricated aluminum air box and lid constructed from 10-gauge aluminum sheet
• 14-gauge mandrel-bent aluminum piping throughout for maximum airflow
• Premium dry media air filter with Outerwears pre-filter cover
• T4 pedestal with hardware for secure turbo mounting
• High-quality stainless steel braided Parker oil feed and drain lines with fittings
• 3" fabricated high-flow Y-bridge replacing restrictive OEM intake manifold
• 3" hot side intercooler pipe
• 3" cold side intercooler pipe
• 3" down pipe with high-temperature coating and HX40 style flange connection
• Driver side transmission dipstick tube for simplified installation
• Silicone boots, T-bolt clamps, and V-band clamps
• Heat wrap and premium powder coating in Bronze finish

Key Features and Benefits:

• Replaces all OEM plumbing and Y-bridge with high-flow 3" diameter piping
• Oil feed line routes from the main oil gallery on the side of the engine block
• Down pipe connects to exhaust system with V-band and clamp, eliminating the need to cut existing exhaust
• HX40 style flange connection at turbo offers best seal, alignment, and easiest installation
• Made in the USA with precision TIG-welded construction
• Custom powder coat finish available in multiple color options
• Supports builds well beyond 600+ horsepower with proper supporting modifications

Important Notes: Turbocharger sold separately. Professional installation by a qualified diesel performance shop is recommended. Supporting modifications such as tuning and lift pump are necessary for optimum performance and drivability. Must specify intercooler brand when ordering as cold side pipe is built specifically for each brand. If not purchasing turbo from Wehrli, exhaust housing must be machined to HX40 style outlet flange. Requires WCFAB Billet forward-facing thermostat housing Kit (WCF100405) or Modified OEM Pipe (WCF100797) for proper turbo intake clearance. For off-road and competition use only.