GrimmSpeed 3in Downpipe to Stock Cat Back Adapter Subaru WRX 02-21 / STI 04-21 | 077044

Rated 5.0 out of 5
Based on 23 reviews
SKU: grm077044
Availability: 5 In Stock Learn more
Type: Gaskets and Hardware
Regular price
$57.00
Regular price
$57.00
Sale price
$57.00
Instant Discount


Subtotal: $57.00

Delivery Options:

  • Economy $11.95
  • 2 Business Day
  • Next Business Day
Fastrak Delivery: , Order within hours minutes

Fitment Information:

2002-2021 Subaru WRX

2004-2021 Subaru STI

2005-2009 Subaru Legacy GT

2005-2009 Subaru Outback XT

2004-2013 Subaru Forester XT

Features:

Kill that exhaust leak for GOOD! This GrimmSpeed adapter will allow you to adapt and properly seal an aftermarket 3-inch downpipe to a 2.5-inch OEM or OEM-like catback exhaust.

This adapter only works with a flared end and it creates a smooth transition from your 3" inch aftermarket downpipe to your OEM midpipe. The end was flared out just shy of 3 inches so it does not block flow! With the ability to work with both flat style gaskets and donut gaskets, this adapter cannot be matched.

  • CNC laser-cut steel construction
  • Provides a leak-free seal and smooth connection
  • Designed with a flared adapter transition
  • Flanged for an OEM donut gasket
  • Will not obstruct exhaust flow
  • Flared end guarantees smooth exhaust flow
  • Includes installation hardware
  • Simple bolt-on design
  • Sold individually




average rating 5.0 out of 5
Based on 23 reviews
  • 5 Stars
    23 Reviews
  • 4 Stars
    0 Reviews
  • 3 Stars
    0 Reviews
  • 2 Stars
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  • 1 Star
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100% of reviewers would recommend this product to a friend
Loudness
Rated 3 out of 5
Review posted
Reviewed by collin c.
Verified Buyer
Rated 5 out of 5

Fits snug, No leaks, Flows great!

Quite a sturdy adapter, also comes with a nice finish coating so very unlikely to develop corrosion in any hurry. gaskets fit snug and properly sized. This thing doesn't flop around in the bore so it really seems like a seamless part.

No additional or reduced noise really.

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Loudness
Rated 1 out of 5
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Reviewed by John W.
Verified Buyer
Rated 5 out of 5

Got rid of my exhaust leak

Had two different retailers tell me I didn't need this to connect my Grimmspeed j-pipe to the AWE Track catback, so I didn't order it. Got the exhaust installed and had a leak between the two. Ordered this and the leak is gone.

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Loudness
Rated 1 out of 5
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Reviewed by Miguel Luis A.
Verified Buyer
Rated 5 out of 5

Sheeesh!

If you have a aftermarket DP, you have to get this if you have a stock mid pipe.

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Loudness
Rated 5 out of 5
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Review posted
Reviewed by Eduardo G.
Verified Buyer
Rated 5 out of 5

Grimmspeed 3in Downpipe Adapter

Don’t forget to order it if your using The oem exhaust

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Loudness
Rated 5 out of 5
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Reviewed by William R.
Verified Buyer
Rated 5 out of 5

Fast shipping

Fixed the exhaust leak I had due to my invidia dp and cobb catback on my 02 wrx not mating properly. Had a pretty annoying exhaust leak but this fixed it

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Reviewed by Michael C.
Verified Buyer
Rated 5 out of 5

Arrived fast!

Forgot I need for a build and it arrived very quickly.

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Reviewed by Dennis E.
Verified Buyer
Rated 5 out of 5

Solid part.

Solid part, great machining, comes with hardware. Lines up nice.

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Reviewed by Emilio
Verified Buyer
Rated 5 out of 5

Easy install

No leaks worked as it should

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Reviewed by Ben T.
Verified Buyer
Rated 5 out of 5

Great Fit

I have a 2015 WRX. This fits well with my Grimmspeed jpipe to oem catback or any 2.5 in catback.

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Reviewed by Dominic C., from United States
Verified Buyer
Rated 5 out of 5

required for j pipe install w/ oem exhaust

if you are buying a j pipe and have stock oem cat back- buy this

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