Wehrli 01-04 Chevrolet 6.6L LB7 Duramax 3in Y-Bridge Kit - Bengal Blue

The only High Flow 3" Complete Y-Bridge kit on the market for your LB7 that is compatible with the factory IHI turbo and aftermarket drop in IHI style chargers! Replace the restrictive OEM Y-bridge and cold side intercooler pipe with this high flow 3" kit to increase throttle response and turbo spool up by creating a full 3" intake tract from the intercooler outlet to the engine. Eliminates the angled OEM intercooler boots that are prone for failure. Includes FPRV Block off kit to allow proper clearance to larger diameter Y-bridge. Wehrli Custom Fab Y-Bridge Kit, for 2001-2004 Duramax LB7, Bengal Blue NOTE:NOT RECOMMENDED FOR USE WITH S300 OR S400 STYLE TURBOCHARGERS.If you are planning to run a turbo other than an OEM / IHI style upgraded drop in on your setup, please check out S300 Single Turbo Kit WCF100478 and S400 Single Turbo Kit WCF100489 or call for help placing your order.

• 50% more airflow than the OEM upper intake manifold and cold side charge pipe!
• 3" Passenger Side Intercooler Pipe - 14g Mandrel Bent Aluminum
• Includes New O-Ring Bridge Flange Gaskets
• Silicone Boots & Stainless T-bolt Clamps
• Map Sensor Seal and Hold Down Bracket
• Durable Custom Powder Coat Finish
• 3" Fabricated Billet Y-Bridge
• Includes FPRV Block Off Kit
• Made in USA

Upgrade your Duramax LB7 engine with the Wehrli 01-04 Chevrolet 6.6L LB7 Duramax 3-Inch Y-Bridge Kit in Bengal Blue. Designed specifically for 2001-2004 GM trucks, this high-flow Y-bridge replaces the factory restrictive components to improve airflow and boost engine performance. The kit features a durable, fabricated billet aluminum Y-bridge with a full 3-inch intake tract, which significantly increases airflow capacity—delivering up to 50% more than the OEM upper intake manifold and cold side charge pipe. This enhancement promotes better throttle response and quicker turbo spool-up, resulting in more responsive acceleration and increased power output. The kit includes a 14-gauge mandrel bent aluminum passenger side intercooler pipe, silicone boots, T-bolt clamps, and new O-ring flange gaskets for a secure, leak-free fit. An essential component is the FPRV block-off kit, which ensures proper clearance when installing larger diameter Y-bridges. The set also includes a map sensor seal and hold-down bracket for easy installation. Crafted with a durable, custom powder coat finish, the Wehrli Y-Bridge kit is built to withstand the harsh conditions of engine bay environments and is made in the USA. Please note, this kit is not recommended for use with S300 or S400 style turbochargers; if you plan to upgrade to these turbo types, consider Wehrli's S300 and S400 turbo kits. This product is EPA compliant and Prop 65 compliant, ensuring it meets regulatory standards. Designed for a precise fit on 2004 Chevrolet Silverado 2500 HD, Silverado 3500, and GMC Sierra 2500 HD models, this kit provides a reliable upgrade for serious enthusiasts looking to maximize their Duramax engine's performance and durability.

Features:

• 50% more airflow than OEM upper intake manifold and cold side charge pipe

• 3-inch passenger side intercooler pipe made from 14-gauge mandrel bent aluminum

• Includes new O-ring flange gaskets for secure sealing

• Silicone boots and stainless T-bolt clamps for durability and leak prevention

• Map sensor seal and hold-down bracket for easy installation

• Durable custom powder coat finish resists harsh engine bay conditions

• Fabricated billet aluminum Y-bridge for strength and reliability

• Includes FPRV block-off kit for proper clearance with larger Y-bridge

• Made in the USA for quality assurance

Fitment:
Chevrolet Silverado 2500 HD Base 2001
Chevrolet Silverado 2500 HD Base 2002
Chevrolet Silverado 2500 HD Base 2003
Chevrolet Silverado 2500 HD Base 2004
Chevrolet Silverado 2500 HD LS 2001
Chevrolet Silverado 2500 HD LS 2002
Chevrolet Silverado 2500 HD LS 2003
Chevrolet Silverado 2500 HD LS 2004
Chevrolet Silverado 2500 HD LT 2001
Chevrolet Silverado 2500 HD LT 2002
Chevrolet Silverado 2500 HD LT 2003
Chevrolet Silverado 2500 HD LT 2004
Chevrolet Silverado 2500 HD WT 2004
Chevrolet Silverado 3500 Base 2001
Chevrolet Silverado 3500 Base 2002
Chevrolet Silverado 3500 Base 2003
Chevrolet Silverado 3500 Base 2004
Chevrolet Silverado 3500 LS 2001
Chevrolet Silverado 3500 LS 2002
Chevrolet Silverado 3500 LS 2003
Chevrolet Silverado 3500 LS 2004
Chevrolet Silverado 3500 LT 2001
Chevrolet Silverado 3500 LT 2002
Chevrolet Silverado 3500 LT 2003
Chevrolet Silverado 3500 LT 2004
Chevrolet Silverado 3500 WT 2004
GMC Sierra 2500 HD Base 2002
GMC Sierra 2500 HD Base 2003
GMC Sierra 2500 HD Base 2004
GMC Sierra 2500 HD SL 2001
GMC Sierra 2500 HD SL 2002
GMC Sierra 2500 HD SLE 2001
GMC Sierra 2500 HD SLE 2002
GMC Sierra 2500 HD SLE 2003
GMC Sierra 2500 HD SLE 2004
GMC Sierra 2500 HD SLT 2001
GMC Sierra 2500 HD SLT 2002
GMC Sierra 2500 HD SLT 2003
GMC Sierra 2500 HD SLT 2004
GMC Sierra 2500 HD WT 2003
GMC Sierra 2500 HD WT 2004
GMC Sierra 3500 Base 2002
GMC Sierra 3500 Base 2003
GMC Sierra 3500 Base 2004
GMC Sierra 3500 SL 2001
GMC Sierra 3500 SL 2002
GMC Sierra 3500 SLE 2001
GMC Sierra 3500 SLE 2002
GMC Sierra 3500 SLE 2003
GMC Sierra 3500 SLE 2004
GMC Sierra 3500 SLT 2001
GMC Sierra 3500 SLT 2002
GMC Sierra 3500 SLT 2003
GMC Sierra 3500 SLT 2004
GMC Sierra 3500 WT 2004