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GrimmSpeed OEM Downpipe to 3in Cat Back Adapter
Subaru Turbo Models
Features & Product Details
RallySport Direct proudly carries a great selection of quality upgrades and accessories brought to you by GrimmSpeed.
This is the Grimmspeed OEM Downpipe To 3-Inch Cat-Back Adapter. This adapter is very popular for those of you who are retaining the stock downpipe and need to eliminate any exhaust leaks associated with the addition of an aftermarket 3" cat-back exhaust system. This adapter will allow you to retain your stock donut gasket to make for a great solution to eliminate the exhaust leak where the stock downpipe and your aftermarket 3-inch cat-back exhaust system will meet.
DETAILS:
Specifications
Brand:
GrimmSpeed
Gasket Layers:
3
Material:
Stainless Steel
QTY:
1
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REVIEWS & CUSTOMER MEDIA
Customer Photos and Videos
5out of
5stars
mrmrs_sti
Just installed yesterday afternoon on our 21 STi and checked for air leaks and none to note. Great fitment and snugs up to the donut gasket very well with the addition of our new exhaust. Great part from Grimmspeed! Please ignore some post as they are not referring to the correct part (this IS NOT an exhaust, it's FOR an exhaust IF you have a STOCK downpipe)
0 of 1 people found the following review helpful
5out of
5stars
Mike D Sr
Wanted to wait a year before leaving a review. I purchased this for my son's 19 STI. First off, this exhaust is amazing in every way. V-band clamps are still holding up, no leaks and they stay tight. Welds are perfect, no cracks unlike another very popular brand that are made out of titanium. This car gets driven about 70+ miles a day, 20 miles of that is off road coming home. Hasn't rattled, cracked or broken down the blue tips one bit. If you're on the fence, check out Smeedia on youtube for a detailed install and sound. There is a very little drone, it is minimal and can be driven quietly if need be.
0 of 1 people found the following review helpful
5out of
5stars
Nick
Worked just as needed to fit a turbo xs catback to my '06 Forester Xt. Just make sure you get a new donut cause chances are the old one is toast.
1 of 1 people found the following review helpful
5out of
5stars
11/10 recommend if you get a Tomei with stock cats
Perfect fit! Really thick quality. Came with hardware. 11/10 recommend if you have original cats and mounting a Tomei exhaust!
1 of 2 people found the following review helpful
5out of
5stars
Holywowcow
It was a perfect fit. No issues. 17 STi, Stock DP to Invidia Q300 cat back. I also bought the GrimmSpeed 2x thick gasket. I used the larger inner diameter gasket provided with the Invidia exhaust for the mid to rear section of he exhaust. Glad I bought the 2x thick gasket as I would have had to use the smaller inner diameter gasket for the mid section (had I used the larger provided one for the DP to cat back) and it would've created some restriction. Good buy!
QUESTIONS & ANSWERS
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Q: Exhaust Jey s.2 years ago
So I recently bought a tomei catback for my 2018 sti do I have to buy the grimmspeed adapter gasket to run the tomei exhaust
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following answer helpful
A: Yes, this will allow your stock 2.5" downpipe to bolt to a 3" Tomei exhaust.
Lane H. @ RallySport Direct 2 years agoWas this answer helpful?
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Q: Invidia r400 Ethanjprlta2 years ago
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0 people found the
following answer helpful
A: A gasket is included, you would need an adapter to go from a stock 2.5" downpipe to a 3" cat back.
Lane H. @ RallySport Direct 2 years agoWas this answer helpful?
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following answer helpful
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Q: Grimspeed catback adapter Josh2 years ago
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0 of
0 people found the
following answer helpful
A: No, if you are going to a 3" downpipe, you won't need an adapter to a 3" exhaust.
Lane H. @ RallySport Direct 2 years agoWas this answer helpful?
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following answer helpful
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Q: Looking to buy this with the Invidia R400 - 2019 WRX alamsas3 years ago
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following answer helpful
A: This will come with 1 gasket, but you are correct in that the R400 will come with this gasket already, but Grimmspeed includes it just incase you don't have one. Hope this helps. Thanks!
Rick C. @ RallySport Direct 3 years agoWas this answer helpful?
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following answer helpful
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Q: Gap between stock DP and Tomei SMsubaru3 years ago
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1 people found the
following answer helpful
A: Everything should sit flush. Reach out to us at [email protected]rallysportdirect.com and we can help you out!
Johnny M. @ RallySport Direct 3 years agoWas this answer helpful?
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0 of
1 people found the
following answer helpful
This Part Fits
Saab 9-2X
2.5i
2006 Saab 9-2X 2.5i
Aero
2005 Saab 9-2X Aero
2006 Saab 9-2X Aero
Linear
2005 Saab 9-2X Linear
