Mishimoto Subaru Exhaust Adapter Stock Downpipe to 3" Exhaust — Fits 02-14 WRX/STI

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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Mishimoto

Mishimoto is the modern leader in performance cooling — aluminum radiators, oil coolers, intercoolers, and silicone hoses for street, track, and tuner builds. Lifetime warranty on every Mishimoto product, with engineering tested at Bondurant and on track teams.

Watch in action

Mishimoto Subaru Exhaust Adapter: Stock Downpipe to 3" Exhaust Connection

Ensure a leak-free and high-performance exhaust system with the Mishimoto Subaru Exhaust Adapter, expertly designed to bridge the gap between your stock downpipe and a 3-inch aftermarket exhaust. This adapter is crucial for Subaru enthusiasts looking to upgrade their exhaust system without compromising on seal integrity. It guarantees a smooth transition, maintaining the desired exhaust tone and preventing performance-robbing leaks.

Engineered for Subaru Performance:

  • 304 Stainless Steel Construction: Crafted from premium 304 stainless steel, this adapter is built to resist rust and corrosion, ensuring durability even in harsh environmental conditions.
  • Precise Fitment: Specifically designed to connect stock Subaru downpipes to 3-inch exhaust systems, providing a perfect seal and eliminating the need for makeshift solutions.
  • Easy Installation: The adapter includes all necessary stainless steel hardware and a 3-inch 2-bolt flange gasket, allowing for a straightforward installation in under 15 minutes.
  • Optimized Exhaust Flow: Facilitates a clean and efficient transition, minimizing turbulence and maximizing the performance benefits of your upgraded exhaust.

This adapter is the ideal solution for mating various Subaru models' stock downpipes to larger 3-inch cat-back or axle-back exhaust systems. It ensures that your aftermarket exhaust performs as intended, delivering the aggressive sound and improved flow you expect. Backed by the Mishimoto Lifetime Warranty, this adapter represents a commitment to quality and reliability for your Subaru's exhaust system. Enhance your Subaru's exhaust setup with this dependable component from GGCRACING.

Vehicle Fitment

Years Make Model Trim
2004-2006 Subaru Baja Sport
2004-2006 Subaru Baja Turbo
2004-2005 Subaru Forester XS
2004-2005 Subaru Forester XT
2004-2013 Subaru Forester X
2005 Subaru Forester XT Premium
2005 Subaru Forester XS L.L. Bean Edition
2006-2008 Subaru Forester X L.L. Bean Edition
2006-2010 Subaru Forester XT Limited
2008 Subaru Forester Sports 2.5 X
2008 Subaru Forester Sports 2.5 XT
2009 Subaru Forester XT
2009-2013 Subaru Forester X Premium
2009-2013 Subaru Forester X Limited
2010-2013 Subaru Forester XT Premium
2011-2013 Subaru Forester XT Touring
2011-2013 Subaru Forester X Touring
2014-2018 Subaru Forester 2.0XT Premium
2014-2018 Subaru Forester 2.0XT Touring
2014-2018 Subaru Forester 2.5i
2014-2018 Subaru Forester 2.5i Limited
2014-2018 Subaru Forester 2.5i Premium
2014-2018 Subaru Forester 2.5i Touring
2002-2004 Subaru Impreza TS
2002-2004 Subaru Impreza Outback
2002-2005 Subaru Impreza RS
2002-2014 Subaru Impreza WRX
2004-2014 Subaru Impreza WRX STI
2005-2011 Subaru Impreza Outback Sport
2006-2007 Subaru Impreza WRX Limited
2006-2007 Subaru Impreza WRX TR
2006-2011 Subaru Impreza 2.5i
2007 Subaru Impreza WRX STI Limited
2009-2010 Subaru Impreza 2.5 GT
2009-2014 Subaru Impreza WRX Premium
2010 Subaru Impreza WRX STI Special Edition
2010-2011 Subaru Impreza 2.5i Premium
2010-2014 Subaru Impreza WRX Limited
2011-2014 Subaru Impreza WRX STI Limited
2012-2014 Subaru Impreza Base
2012-2014 Subaru Impreza Limited
2012-2014 Subaru Impreza Premium
2012-2014 Subaru Impreza Sport Limited
2012-2014 Subaru Impreza Sport Premium
2005 Subaru Legacy GT Limited
2005 Subaru Legacy i
2005 Subaru Legacy Limited
2005-2006 Subaru Legacy GT
2006-2009 Subaru Legacy GT spec.B
2006-2013 Subaru Legacy 2.5i
2007-2009 Subaru Legacy GT Limited
2007-2009 Subaru Legacy 2.5i Special Edition
2007-2013 Subaru Legacy 2.5i Limited
2008-2009 Subaru Legacy 3.0 R Limited
2009 Subaru Legacy 3.0 R
2010-2012 Subaru Legacy 3.6R Premium
2010-2012 Subaru Legacy 2.5GT
2010-2013 Subaru Legacy 2.5i Premium
2010-2013 Subaru Legacy 3.6R
2010-2013 Subaru Legacy 3.6R Limited

…and 25 additional fitments. Contact us to confirm yours.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Mishimoto

Mishimoto is the modern leader in performance cooling — aluminum radiators, oil coolers, intercoolers, and silicone hoses for street, track, and tuner builds. Lifetime warranty on every Mishimoto product, with engineering tested at Bondurant and on track teams.

Watch in action

Mishimoto Subaru Exhaust Adapter: Stock Downpipe to 3" Exhaust Connection

Ensure a leak-free and high-performance exhaust system with the Mishimoto Subaru Exhaust Adapter, expertly designed to bridge the gap between your stock downpipe and a 3-inch aftermarket exhaust. This adapter is crucial for Subaru enthusiasts looking to upgrade their exhaust system without compromising on seal integrity. It guarantees a smooth transition, maintaining the desired exhaust tone and preventing performance-robbing leaks.

Engineered for Subaru Performance:

  • 304 Stainless Steel Construction: Crafted from premium 304 stainless steel, this adapter is built to resist rust and corrosion, ensuring durability even in harsh environmental conditions.
  • Precise Fitment: Specifically designed to connect stock Subaru downpipes to 3-inch exhaust systems, providing a perfect seal and eliminating the need for makeshift solutions.
  • Easy Installation: The adapter includes all necessary stainless steel hardware and a 3-inch 2-bolt flange gasket, allowing for a straightforward installation in under 15 minutes.
  • Optimized Exhaust Flow: Facilitates a clean and efficient transition, minimizing turbulence and maximizing the performance benefits of your upgraded exhaust.

This adapter is the ideal solution for mating various Subaru models' stock downpipes to larger 3-inch cat-back or axle-back exhaust systems. It ensures that your aftermarket exhaust performs as intended, delivering the aggressive sound and improved flow you expect. Backed by the Mishimoto Lifetime Warranty, this adapter represents a commitment to quality and reliability for your Subaru's exhaust system. Enhance your Subaru's exhaust setup with this dependable component from GGCRACING.

Vehicle Fitment

Years Make Model Trim
2004-2006 Subaru Baja Sport
2004-2006 Subaru Baja Turbo
2004-2005 Subaru Forester XS
2004-2005 Subaru Forester XT
2004-2013 Subaru Forester X
2005 Subaru Forester XT Premium
2005 Subaru Forester XS L.L. Bean Edition
2006-2008 Subaru Forester X L.L. Bean Edition
2006-2010 Subaru Forester XT Limited
2008 Subaru Forester Sports 2.5 X
2008 Subaru Forester Sports 2.5 XT
2009 Subaru Forester XT
2009-2013 Subaru Forester X Premium
2009-2013 Subaru Forester X Limited
2010-2013 Subaru Forester XT Premium
2011-2013 Subaru Forester XT Touring
2011-2013 Subaru Forester X Touring
2014-2018 Subaru Forester 2.0XT Premium
2014-2018 Subaru Forester 2.0XT Touring
2014-2018 Subaru Forester 2.5i
2014-2018 Subaru Forester 2.5i Limited
2014-2018 Subaru Forester 2.5i Premium
2014-2018 Subaru Forester 2.5i Touring
2002-2004 Subaru Impreza TS
2002-2004 Subaru Impreza Outback
2002-2005 Subaru Impreza RS
2002-2014 Subaru Impreza WRX
2004-2014 Subaru Impreza WRX STI
2005-2011 Subaru Impreza Outback Sport
2006-2007 Subaru Impreza WRX Limited
2006-2007 Subaru Impreza WRX TR
2006-2011 Subaru Impreza 2.5i
2007 Subaru Impreza WRX STI Limited
2009-2010 Subaru Impreza 2.5 GT
2009-2014 Subaru Impreza WRX Premium
2010 Subaru Impreza WRX STI Special Edition
2010-2011 Subaru Impreza 2.5i Premium
2010-2014 Subaru Impreza WRX Limited
2011-2014 Subaru Impreza WRX STI Limited
2012-2014 Subaru Impreza Base
2012-2014 Subaru Impreza Limited
2012-2014 Subaru Impreza Premium
2012-2014 Subaru Impreza Sport Limited
2012-2014 Subaru Impreza Sport Premium
2005 Subaru Legacy GT Limited
2005 Subaru Legacy i
2005 Subaru Legacy Limited
2005-2006 Subaru Legacy GT
2006-2009 Subaru Legacy GT spec.B
2006-2013 Subaru Legacy 2.5i
2007-2009 Subaru Legacy GT Limited
2007-2009 Subaru Legacy 2.5i Special Edition
2007-2013 Subaru Legacy 2.5i Limited
2008-2009 Subaru Legacy 3.0 R Limited
2009 Subaru Legacy 3.0 R
2010-2012 Subaru Legacy 3.6R Premium
2010-2012 Subaru Legacy 2.5GT
2010-2013 Subaru Legacy 2.5i Premium
2010-2013 Subaru Legacy 3.6R
2010-2013 Subaru Legacy 3.6R Limited

…and 25 additional fitments. Contact us to confirm yours.

Product Details

Product Description

About Mishimoto

Mishimoto is the modern leader in performance cooling — aluminum radiators, oil coolers, intercoolers, and silicone hoses for street, track, and tuner builds. Lifetime warranty on every Mishimoto product, with engineering tested at Bondurant and on track teams.

Watch in action

Mishimoto Subaru Exhaust Adapter: Stock Downpipe to 3" Exhaust Connection

Ensure a leak-free and high-performance exhaust system with the Mishimoto Subaru Exhaust Adapter, expertly designed to bridge the gap between your stock downpipe and a 3-inch aftermarket exhaust. This adapter is crucial for Subaru enthusiasts looking to upgrade their exhaust system without compromising on seal integrity. It guarantees a smooth transition, maintaining the desired exhaust tone and preventing performance-robbing leaks.

Engineered for Subaru Performance:

  • 304 Stainless Steel Construction: Crafted from premium 304 stainless steel, this adapter is built to resist rust and corrosion, ensuring durability even in harsh environmental conditions.
  • Precise Fitment: Specifically designed to connect stock Subaru downpipes to 3-inch exhaust systems, providing a perfect seal and eliminating the need for makeshift solutions.
  • Easy Installation: The adapter includes all necessary stainless steel hardware and a 3-inch 2-bolt flange gasket, allowing for a straightforward installation in under 15 minutes.
  • Optimized Exhaust Flow: Facilitates a clean and efficient transition, minimizing turbulence and maximizing the performance benefits of your upgraded exhaust.

This adapter is the ideal solution for mating various Subaru models' stock downpipes to larger 3-inch cat-back or axle-back exhaust systems. It ensures that your aftermarket exhaust performs as intended, delivering the aggressive sound and improved flow you expect. Backed by the Mishimoto Lifetime Warranty, this adapter represents a commitment to quality and reliability for your Subaru's exhaust system. Enhance your Subaru's exhaust setup with this dependable component from GGCRACING.

Vehicle Fitment

Years Make Model Trim
2004-2006 Subaru Baja Sport
2004-2006 Subaru Baja Turbo
2004-2005 Subaru Forester XS
2004-2005 Subaru Forester XT
2004-2013 Subaru Forester X
2005 Subaru Forester XT Premium
2005 Subaru Forester XS L.L. Bean Edition
2006-2008 Subaru Forester X L.L. Bean Edition
2006-2010 Subaru Forester XT Limited
2008 Subaru Forester Sports 2.5 X
2008 Subaru Forester Sports 2.5 XT
2009 Subaru Forester XT
2009-2013 Subaru Forester X Premium
2009-2013 Subaru Forester X Limited
2010-2013 Subaru Forester XT Premium
2011-2013 Subaru Forester XT Touring
2011-2013 Subaru Forester X Touring
2014-2018 Subaru Forester 2.0XT Premium
2014-2018 Subaru Forester 2.0XT Touring
2014-2018 Subaru Forester 2.5i
2014-2018 Subaru Forester 2.5i Limited
2014-2018 Subaru Forester 2.5i Premium
2014-2018 Subaru Forester 2.5i Touring
2002-2004 Subaru Impreza TS
2002-2004 Subaru Impreza Outback
2002-2005 Subaru Impreza RS
2002-2014 Subaru Impreza WRX
2004-2014 Subaru Impreza WRX STI
2005-2011 Subaru Impreza Outback Sport
2006-2007 Subaru Impreza WRX Limited
2006-2007 Subaru Impreza WRX TR
2006-2011 Subaru Impreza 2.5i
2007 Subaru Impreza WRX STI Limited
2009-2010 Subaru Impreza 2.5 GT
2009-2014 Subaru Impreza WRX Premium
2010 Subaru Impreza WRX STI Special Edition
2010-2011 Subaru Impreza 2.5i Premium
2010-2014 Subaru Impreza WRX Limited
2011-2014 Subaru Impreza WRX STI Limited
2012-2014 Subaru Impreza Base
2012-2014 Subaru Impreza Limited
2012-2014 Subaru Impreza Premium
2012-2014 Subaru Impreza Sport Limited
2012-2014 Subaru Impreza Sport Premium
2005 Subaru Legacy GT Limited
2005 Subaru Legacy i
2005 Subaru Legacy Limited
2005-2006 Subaru Legacy GT
2006-2009 Subaru Legacy GT spec.B
2006-2013 Subaru Legacy 2.5i
2007-2009 Subaru Legacy GT Limited
2007-2009 Subaru Legacy 2.5i Special Edition
2007-2013 Subaru Legacy 2.5i Limited
2008-2009 Subaru Legacy 3.0 R Limited
2009 Subaru Legacy 3.0 R
2010-2012 Subaru Legacy 3.6R Premium
2010-2012 Subaru Legacy 2.5GT
2010-2013 Subaru Legacy 2.5i Premium
2010-2013 Subaru Legacy 3.6R
2010-2013 Subaru Legacy 3.6R Limited

…and 25 additional fitments. Contact us to confirm yours.

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