GrimmSpeed 3in Downpipe to Stock Cat-Back Adapter

2002-2021 Subaru Turbo EJ Engines


SKU: 077044We price match!

In Stock

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Eliminate all exhaust leaks when trying to fit an OEM or OEM like 2.5" catback exhaust to a 3" downpipe.
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Eliminate all exhaust leaks when trying to fit an OEM or OEM like 2.5" catback exhaust to a 3" downpipe.

  • Flared Adapter Transition - Creates a smooth transition from your 3" downpipe to your OEM midpipe
  • Flanged for OEM Donut Gasket
  • Indestructible Steel CNC Laser cut construction
  • Simple bolt on installation (bolts included)

Exhaust leaks seem to be an all-too-common issue with most modded Subarus. They tend to spring up out of nowhere and cause hours of troubleshooting headaches. The most guaranteed leak you will get though is if you run an aftermarket 3" downpipe to an OEM or OEM like 2.5" Exhaust. Compare our adapter to the competition and you will immediately see why we offer the best solution to finally end that pesky leak.

Cut from Steel and hand welded these pieces were born tough. With the ability to work with both flat style gaskets AND donut gaskets they cannot be matched. If that wasn't enough we flared out one end to just shy of 3" so that unlike the competitors, our adapter will not block flow!

A Final solution to pesky problems, it's what you can expect from GrimmSpeed™.

NOTE: GrimmSpeed 3" Gasket and OEM Subaru Donut Gasket SOLD SEPARATELY. Adapter is only intended to be used for connecting aftermarket 3" downpipe to OEM style catback. It can not be done in reverse.

2002-2021 Subaru Turbo Models

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1 customer review

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(based on 1 review)
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  1. Great

    By Yeng July 10, 2017

    Great quality. Actually would've been nice to have a new gasket. But stock works too

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