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Sinister Diesel Raw Y-Pipes | 2003-2007 Ford Powerstroke 6.0L

Pricing: $525.00

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Sinister Diesel has opted to get rid of the bellows in favor of a much stronger, longer lasting "double slip" flex joint On their 2003-2007 Ford Powerstroke 6.0 Up-pipes. In turn, there are now, no bellows to heat fatigue and crack. It will still allow the upper, and lower sections of the Y-Pipes to flex and move due to heat expansion, while maintaining a 100% seal. The double slip also allows some flexibility to account for different tolerances in the motors from year to year, as well as aftermarket turbo kits. All of our up-pipe kits a fully TIG welded on a fixture, as well as back-purged for the highest quality, strongest weld possible. Sinister Diesel SS 6.0L Powerstroke Y-Pipes are Built with Solid Stainless Steel CNC Flanges and Stainless Steel Tubing. These Y-Pipes are Fully Tig Welded and are Built to Fit 2003-2007 6.0L Powerstroke Super Duty/Excursion.


  • Construction - Stainless
  • Product Design - Mandrel Bent Tubing, Full TIG welds, and CNC Precision Machined
  • Performance Notes - Longer life with a leak-proof seal
  • Raw stainless steel finish
  • Kit Includes - (1) Sinister Diesel Y-Pipe and Up-Pipe
  • Special Note - To use this part you do need to be running an EGR Upgrade. There is no branch for the cooler to hook up on this y-pipe

Important Note: Requires race tuning. Not for legal sale in California.

Shipping Information

  • Item Requires Shipping
  • 10.0 lbs.
  • W6.0000” x H10.0000” x L10.0000”
  • Free Shipping