Wehrli Custom Fabrication WCF100478-BC S300 Single Turbo Install Kit for 2001-2004 LB7 Duramax

The Wehrli Custom Fabrication WCF100478-BC is a complete S300-based single turbo installation kit engineered specifically for 2001-2004 LB7 Duramax engines. This comprehensive kit replaces all OEM plumbing and Y-bridge with high-flow 3-inch diameter piping, maximizing airflow and performance potential.

Kit Includes:

• 4-inch intake with fabricated air box and lid constructed from 10-gauge aluminum sheet
• 14-gauge mandrel bent aluminum intake piping
• Premium dry media air filter with Outerwear's pre-filter cover
• T4 turbo pedestal with mounting hardware
• High-quality stainless steel braided oil feed and drain lines with fittings
• 3-inch fabricated high-flow Y-bridge
• 3-inch hot side intercooler pipe
• 3-inch cold side intercooler pipe
• 3-inch down pipe with high-temperature coating (mates to exhaust system flange)
• Driver side transmission dipstick tube
• Silicone boots, T-bolt clamps, and V-band clamps
• Heat wrap included

Features:

• Gloss Black powder coat finish for superior corrosion resistance and show-quality appearance
• Oil feed line routes from main oil gallery on engine block for optimal lubrication
• Down pipe designed with V-band connection for simplified installation without cutting exhaust
• All components fabricated and manufactured in the USA
• Direct-fit application ensures proper fitment and performance

This is a complete bolt-on solution for upgrading to an S300 turbocharger on your LB7 Duramax, providing everything needed for a professional installation. The kit's high-flow design eliminates restrictive factory components to unlock significant horsepower and torque gains.

Note: This product cannot be shipped to California and is intended for off-road competition use only.