01-05 Duramax HSP Y-Bridge Kit For S300 or S400 Turbos Only

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  • Regular price $729.00

Increase performance and flow with our upgraded 3" LB7 style Max Flow Bridge and cold-side kit. Our precision CNC machined bridge section allows for maximum efficiency, as well as a perfect fit every time.  The mandrel bent 3'' cold-side tube complements the Y-bridge for the ultimate in efficiency, flow, and maximizing the performance capabilities of your truck. This cold-side tube in combination with the single style max flow bridge is best suited for aftermarket turbo options such as s300/s400 series chargers in the valley.

These components have been designed and are intended for closed course competition only! It becomes the sole responsibility of the customer to ensure that the use of their vehicle and items purchased comply with federal, state, and local regulations. Performance products are legal only for sanctioned closed course racing vehicles, which may never be used on a public highway. The customer assumes all risks and expenses relating to unlawful vehicle operation on public roads.

By purchasing this product, you have agreed not to hold HSP Diesel.com liable for unlawful vehicle operation


  • 3" mandrel bent cold-side tube
  • High strength Upper and Lower silicone Boots
  • Industrial strength stainless steel T-bolt clamps
  • Precision CNC machined billet bridge section
  • Pressure fuel plug and hardware for factory distribution block (LB7 ONLY)


  • LB7: 01-04 VIN Code 1
  • LLY: 04.5-05 VIN Code 2


  • Increased performance
  • Powder coating option to dress up engine bay
  • Upgraded high strength silicone boots
  • Straight entrance into intercooler
  • Easy install for aftermarket turbos
  • Upgraded high strength silicone boots


Ask a Question
  • Will this fit a stock turbo? I’m trying to do a egr delete on a lb7 and I’m in need of a new y bridge will this work?

    It will not fit stock turbo, WCFab bridge would fit, but WCFab is around 5 weeks out on new orders

  • Is there enough clearance for this y bridge with a 3.5" turbo horn installed on a drop in turbo?

    Hello, no but the wcfab fit we have does clear stock turbo with 3.5" horn