Description
The Mishimoto Subaru Exhaust Adapter (MMEXH-ADAP-SDAE) is a purpose-built 304 stainless steel fitting that solves one specific problem: bridging your turbo Subaru’s stock downpipe to a 3-inch exhaust system without the leaks and rasp caused by mismatched flanges. It’s engineered to mate directly with a stock 2015 WRX exhaust flange, making it the piece that lets a Mishimoto 2015+ WRX/STI Cat-Back Exhaust bolt on cleanly and seal properly.
Rather than settling for a leaky, mismatched connection between your factory downpipe and an aftermarket 3-inch exhaust, this Mishimoto adapter delivers a smooth, sealed flow transition. Built from 304 stainless steel, it resists rust in the harsh, wet, and salted-road climates Subarus are so often driven in, and it’s finished to hold up long term. Installation is designed to be fast and straightforward, and the adapter arrives with everything needed to get it done without a trip to the hardware store.
Vehicle Applications
This adapter is engineered as a specific-fit part for turbocharged Subaru applications, covering the 2001-and-up Subaru WRX, 2004-and-up Subaru WRX STI, 2004-and-up Subaru Forester XT, 2005-and-up Subaru Legacy GT, and 2005–2009 Subaru Outback XT. It’s built around the EJ255, EJ257, and FA20DIT engine codes, and is compatible with Subaru chassis codes BL, BP, BM, BR, GH, GE, GR, GV, SG5, SH, and VA. The adapter mates directly to a stock 2015 WRX exhaust flange, making it a natural pairing with the Mishimoto 2015+ WRX/STI Cat-Back Exhaust.
Features
- Allows a smooth exhaust flow transition between the stock downpipe and a 3-in sized exhaust
- Eliminates exhaust leaks caused by mating different exhaust flanges
- Built from 304 stainless steel so it won’t rust in harsh climates
- Installs in under 15 minutes
- Includes stainless steel hardware and a 3-in 2-bolt flange gasket
- Backed by the Mishimoto Lifetime Warranty
Specifications
- Brand: Mishimoto
- Part Number: MMEXH-ADAP-SDAE
- Material: 304 Stainless Steel
- Finish: Stainless Steel
- Color: Silver
- Grade Type: Performance
- Universal or Specific Fit: Specific
- Inlet Attachment Type: Bolt-On
- Outlet Attachment Type: Bolt-On
- Flange Included: Yes
- Gasket or Seal Included: Yes
- Overall Width: 1.54 in
- Overall Height: 5.24 in
- Overall Length: 3.94 in
- Engine Codes: EJ255, EJ257, FA20DIT
- Chassis Codes: BL, BP, BM, BR, GH, GE, GR, GV, SG5, SH, VA
- Includes: (1) 3-inch to 2.5-inch Exhaust Adapter, (1) 3-inch 2-Bolt Flange Gasket, (2) Stainless Steel Bolts, Serrated Flange Nuts & Washers, Mishimoto Lifetime Warranty
Frequently Asked Questions
Which Subaru vehicles does the Mishimoto Exhaust Adapter fit?
This adapter is a specific fit for the 2001+ Subaru WRX, 2004+ Subaru WRX STI, 2004+ Subaru Forester XT, 2005+ Subaru Legacy GT, and 2005-2009 Subaru Outback XT, and it’s built around the EJ255, EJ257, and FA20DIT engine codes on chassis codes BL, BP, BM, BR, GH, GE, GR, GV, SG5, SH, and VA.
What is the Mishimoto Exhaust Adapter made from?
It is made from 304 stainless steel with a stainless steel finish and silver color, so it resists rust even in harsh climates.
What does the adapter come with?
It includes (1) 3-inch to 2.5-inch exhaust adapter, (1) 3-inch 2-bolt flange gasket, and (2) stainless steel bolts, serrated flange nuts, and washers, plus the Mishimoto Lifetime Warranty.
How long does installation take?
According to Mishimoto, this exhaust adapter installs in under 15 minutes.
What problem does this adapter solve?
It allows a smooth exhaust flow transition between your stock downpipe and a 3-inch sized exhaust, eliminating exhaust leaks caused by mating different exhaust flanges. It mates directly with a stock 2015 WRX exhaust flange, making it compatible with the Mishimoto 2015+ WRX/STI Cat-Back Exhaust.
Does the Mishimoto Exhaust Adapter come with a warranty?
Yes, it is backed by the Mishimoto Lifetime Warranty.
âš WARNING (California Proposition 65): This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
