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Kthnxbye Racing

MAP WRX Catted Downpipe Rev 4 | 2015-2020 Subaru WRX MT

MAP WRX Catted Downpipe Rev 4 | 2015-2020 Subaru WRX MT

Regular price $764.99
Regular price Sale price $764.99
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2015-2020 Subaru WRX MT Rev 4 Catted Downpipe by MAPerformance

When the turbo compresses exhaust gas, it's forced through a narrow downpipe on its way through the exhaust system. This narrow pipe can create lots of turbulence. This air pressure needs to go somewhere, and the factory 2015-2020 Subaru WRX downpipe is a huge bottleneck, limiting flow and robbing power. An upgraded downpipe will allow this spent exhaust gas a quicker outlet to the exhaust system, increasing horsepower and torque through the entire power band!


  • 3.5" bell mouth to 3" design reduces exhaust restrictions
  • Made from 304 stainless steel for superior corrosion resistance and enhanced appearance
  • Mandrel-bent tubing throughout optimizes exhaust flow
  • Stainless steel flex section reduces stress from engine movement increasing longevity
  • Utilizes OEM ground strap
  • Designed to be used with your OEM turbo outlet gasket
  • 304 stainless steel CNC turbo outlet flange
  • 100% Made in the USA

Please Note: This will not fit CVT models. This product may be used with either a factory cat-back exhaust system or the MAPerformance exhaust system. Please specify via the dropdown before ordering.

May also work with other catbacks, please contact us with any questions!


  • 2015 - 2020 Subaru WRX


  • Improves Exhaust flow leaving the turbo.
  • Won't Rust! Made from High-quality stainless
  • Proven to add serious HP!

What's in the Box?

  • 1 - MAP WRX Downpipe
  • 1 - 3" V-band Clamp
  • 1 - M6 Cap Screw
  • 1 - M6 Nut
  • 1 - 3" 2 Bolt Gasket
  • 2 - M10x1.25x40 Bolts
  • 2 - M10x1.25 Flange Nuts
  • 1 - Extension Harness
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