The OEM components between the turbo and engine? Check out the WCFab Stage 1 High Flow Intake Bundle Kit for the 2001-2004 6.6L Duramax. This kit replaces the restrictive OEM LB7 Y-bridge, passenger side intercooler pipe, and driver side intercooler pipe with a high flow, 3" mandrel bent aluminum piping kit feeding WCFab's signature TIG welded, CNC machined billet y-bridge base to help increase throttle response, turbo spool up, and reduce EGTs by creating a full 3" intake tract between your turbo and engine.. Kit includes upgraded high quality silicone boots that withstand higher pressures and temperatures than the failure prone, angled factory parts to increase reliability and help eliminate boost leaks. Includes Fuel Pressure Regulator Valve (FPRV) Block Off Kit to allow proper clearance to larger diameter Y-bridge assembly.. 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 our S300 Single Turbo Kit WCF100478 and our S400 Single Turbo Kit WCF100489 or call us for help placing your order.. Already have an air intake and turbo down pipe that you're happy with, but looking to improve your LB7's performance and efficiency by addressing weak points in. NOTE: WILL NOT FIT WITH A BANKS INTERCOOLER. If you have a Banks intercooler, please call us for help placing your order.. Wehrli Custom Fab High Flow Bundle Intake Kit Stage 1, 01-04 Duramax LB7, Gloss Black. Wehrli 01-04 Chevrolet LB7 Duramax High Flow Intake Bundle Kit Stage 1 - Gloss Black. Inlcudes upgrades 3" Driver (Hot) and Passenger (Cold) Side Intercooler Pipes. High Flow Bundle Intake Kit Stage 1, 01-04 D-Max LB7, Gloss Black. 3" Fabricated Y-Bridge (for OEM style intake horn). Hi Flo Kit Stage 1 01-04 Dmax Gloss Blk. Map Sensor Seal and Hold Down Bracket. O-Ring Bridge Flange Gaskets. 14 ga Aluminum Construction. Custom Powder Coat Finish. Intercooler Pipe Set. Hi Flo S1 01-04 GB. FPRV Block Off Kit. Made In the USA

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