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GrimmSpeed Up Pipe w/ Black Ceramic Coating - Subaru WRX 2006-2014 / STi 2004-2020 (+Multiple Fitments)


Grimmspeed designed this up pipe using their in-house FARO Arm along with the latest and greatest Solidworks CAD Software. This assures that GS can offer you the most precise and best fitting up pipe on the market. OEM exhaust manifold pieces are inconsistent so they used their reverse engineering hardware/software to scan countless OEM pieces to determine the range of best fitments for their aftermarket pipe. This allows GS to be very confident that your flanges will be leak free and the up pipe will fit perfectly, every time.

Grimmspeed's up pipe is made with the best local raw materials available. The flex joint is 321 Stainless Steel w/ an Interlocking Liner and the tubing is a heavy duty 14 Gauge 304 Stainless Steel (competitors use thinner 16 GA) that has been precisely CNC Mandrel Bent; our flanges are made out of 1/2" 304 Stainless Steel and are put through a tumbling process to smooth out the edges. The pipe is hand-welded on the inside of the flange, in addition to the outside, allowing for added strength to the finished product and a nice mating surface with optimal flow through the pipe. All fabrication is completed by their team of Certified Welders/Fabricators which ensures that each and every up pipe that comes out of their facility will handle anything you throw at it!

Quick Specs:

  • Gaskets Included - Heavy Duty GrimmSpeed Gaskets
  • Flex Joint - 321 Stainless Steel "Tuned-Bellow"
  • Tubing Thickness- 14 Gauge Piping Thickness - 33% thicker than most competitors
  • Pipe to Flange Connection - Hand-welded on both outside/inside of the flange for an extremely strong connection
  • Flanges - 1/2" 304 Stainless Steel 
  • Optional Ceramic Coating
  • Reduce Turbo Lag


*Photos for marketing purposes only. Actual product may vary in appearance / style. 

  • 2006-2014 Subaru WRX
  • 2004-2020 Subaru STI
  • 2004-2013 Subaru Forester XT
  • 2005-2009 Subaru Legacy GT
  • 2006-2009 Subaru Legacy GT Spec B
  • 2005-2009 Subaru Outback XT


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