Product Code: 026-HSP-X

Availability: In stock

2001-2016 Chevrolet / GMC S400 Down Pipe LB7 , LLY , LBZ , LMM , LML

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The HSP S400 Single Kit Downpipe is constructed from 3.5'' aluminized steel and built to last. Each downpipe is built in quality fixtures to ensure proper fitment. This downpipe allows great fire wall clearance and can be made to work with the factory transmission dipstick tube, but our HSP dipstick tube will provide the necessary room for a simple install. This product is specified for HSP's S300 install kit, however, it may work with other aftermarket applications depending on pedestal height. HSP cannot guarantee proper fitment with other manufacturers components.

*Does not fit stock chargers or drop in stock replacement chargers*

Works with most pedestals-Recommended to use HSP Pedestal for best fitment



  • LB7: 01-04 VIN Code 1
  • LLY: 04.5-05 VIN Code 2
  • LBZ: 06-07 VIN Code 2 or D
  • LMM: 07.5-10 VIN Code 7
  • LML: 11-16 VIN Code 8


  • Lower Exhaust gas temperatures
  • Ceramic coating option for heat control
  • CNC machined flanges
  • Mandrel bend tube for increased strength and flow
  • Improve exhaust tone
  • Two piece design allows for easy installation
  • 4'' lower section for increased flow and easy transition to your existing exhaust
Additional Information

Additional Information

Cab Size No
Brand HSP Diesel

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