2015+ WRX / 2014+ Forester XT PRL Motorsports 3" Midpipe

Each piece uses 3D CNC ported 1018 cold rolled steel flanges mated to 304 stainless 3" tubing. All products are handmade and checked for perfect fitment.

The J-pipe / midpipe assembly is 2 pieces, giving customers the ability utilize the factory catalytic converter by using only the midpipe. A catted J-pipe will not be offered because there is no way for us to include a high quality cat for an affordable price. Most aftermarket cats offered with other J-pipe assemblies are inferior compared to the OEM cat. Using the upper J-pipe will make the exhaust system catless.
A premium stainless flex section is used to allow movement in the exhaust to reduce the risk of cracking

Optional additional o2 bung for customers using a wideband sensor.
  • Increased spool
  • Average 10-20 hp and tq gain throughout the midrange
  • 13 whp / 18 ft/lbs tq at peak
Kit Includes:
  • Midpipe v2 (1 Piece Design)
  • All gaskets and hardware to bolt up to the factory primary cat
Dyno numbers are based off of a bone stock 2015 WRX with ETS 3" cat-back exhaust and Cobb Stage 1 reflash on an AWD Dynojet on the same day with 3 back-to-back pulls with each mod to check for consistency. 
*Offroad Use Only
Grimmspeed Factory exhaust adapter sold separate

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