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Features & Product Details
This is the Grimmspeed OEM Downpipe to 3in Cat Back Adapter. This particular 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: cat-back exhaust system will meet.
Grimmspeed CNC machined this gasket from mild steel then had it zinc coated for extra durability and longevity. This gasket is also made in a double thickness sizing to provide a perfect seal.
Hardware will be supplied to make this adapter ready for the installation.
Specifications
RallySport Guarantee - 30 Days
Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.
RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.
The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
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REVIEWS & CUSTOMER MEDIA
A must have for anyone running a catback with the OEM downpipe! Hardware is top notch as well!
If there is one thing that makes me the happiest, it’s parts that do what they are meant to do. Made it a dream to put my cat back on! Thank you!
Nice gasket that does the job between the oem downpipe and my new ETS catback. It provides the proper sealing of exhaust gases and includes nice hardware. The oem hardware did have nice springs to allow for flex, which the Grimmspeed does not.
I was told and read that you need this to bolt up a cat back to your aftermarket stock style downpipe. No. You don’t. You only need this is you’re bolting a cat back up to the STOCK downpipe. So while I love grimmspeed gaskets etc I really didn’t need this.
QUESTIONS & ANSWERS
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Q: Cobb Catback WRXGuy5 days ago
Hello, i was wondering if i need this for the Cobb catback while running stock DP on an '04 STi? Thanks
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0 of 0 people found the following answer helpful
A: This adapter would not be needed for the Stock downpipe to Cobb Catback connection. The Cobb Catback tapers down to 2.5 inches like stock. You would just need a donut gasket for the connection.
Karsten B. @ RallySport Direct 4 days agoWas this answer helpful?
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0 of 0 people found the following answer helpful
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Q: Donut Gasket samfrench5524 days ago
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0 of 0 people found the following answer helpful
A: Yes, a donut gasket would be required
Devan M. @ RallySport Direct 18 days agoWas this answer helpful?
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0 of 0 people found the following answer helpful
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Q: Invidia N1 Cat Back doucheung08710282 months ago
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1 of 1 people found the following answer helpful
A: Yes, this would be the adapter you want to use when installing any aftermarket 3" catback exhaust on the Stock Downpipe.
Brady R @ RallySport Direct 2 months agoWas this answer helpful?
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1 of 1 people found the following answer helpful
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Q: Tomei ti catback/COBB downpipe Nelson Asay8 months ago
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0 of 0 people found the following answer helpful
A: Yes this should work!
Devan M. @ RallySport Direct 7 months agoWas this answer helpful?
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0 of 0 people found the following answer helpful
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Q: Installing Invidia Downpipe to N1 Race Exhaust Zystus9 months ago
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0 of 0 people found the following answer helpful
A: This will work while you're running the OEM downpipe. Once you install the Invidia, you'll just want a regular 3" 2 bolt gasket.
Marcus E. @ RallySport Direct 7 months agoWas this answer helpful?
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0 of 0 people found the following answer helpful
