Mishimoto Subaru Exhaust Adapter 3 Downpipe to Stock Exhaust (Multiple Subaru Fitments)

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$ 53.95 $ 70.88

Mishimoto Exhaust 3-inch Downpipe to Stock Cat-Back Adapter

Don’t let a pesky exhaust leak ruin the beautiful tone from your turbo 2015 WRX exhaust. The Mishimoto Subaru Exhaust Adapter allows a smooth exhaust flow transition between your 3” downpipe and stock sized exhaust. The engineers at Mishimoto know your Subaru was built for harsh climates, so they designed this adapter with 304 stainless steel material so it will never rust. This 2015 WRX adapter installs in under 15 minutes and includes stainless steel hardware and a new 3” 2-bolt flange gasket, making installation simple. This 2015 WRX exhaust adapter mates directly with your stock 2015 WRX exhaust flange and gets rid of any exhaust leaks when combining with the Mishimoto Subaru WRX Performance Stainless Steel Downpipe. Whether you are entering your 2015 WRX in the local rallycross, or lapping at your next track day, trust Mishimoto and our line of 2015 WRX parts to keep your WRX cool. This 2015 WRX exhaust adapter, like our entire line of 2015 WRX parts, includes the signature Mishimoto Lifetime Warranty.


  • Allows smooth exhaust-flow transition between 3" downpipe and stock-sized exhaust
  • Eliminates infamous exhaust leaks caused by mating different exhaust flanges
  • 304 stainless steel adapter will not rust in harsh climates
  • Installs in under 15 minutes
  • Includes stainless steel hardware and 3" two-bolt flange gasket
  • Mishimoto Lifetime Warranty


  • Engine Codes: EJ255, EJ257, FA20DIT
  • Chassis Codes: BL, BP, BM, BR, GH, GE, GR, GV, SG5, SH, VA
  • Weight: 2 lbs
  • Overall Width: 7"
  • Overall Length: 2"
  • Overall Height: 7"
  • Flange Material: 304 Stainless Steel
  • Pipe Material: 304 Stainless Steel


  • 2002-2017 Subaru WRX
  • 2004-2017 Subaru STi
  • 2005-2009 Subaru Legacy GT
  • 2004-2013 Subaru Forester XT
  • 2005-2009 Subaru Outback XT

What's In The Box?

  • 3" to 2.5" Exhaust Adapter
  • 3" 2-Bolt Flange Gasket
  • Stainless Steel Bolts Serrated Flange Nuts & Washers Mishimoto Lifetime Warranty

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