- Exhausts
- Cat Back Exhaust System
- Downpipes And Y-pipes
- Exhaust Headers And Manifolds
- Exhaust Gaskets And Hardware
- Axle Back Exhausts
- Shop All
- Engine Management
- Plug And Play Engine Management
- Staged Power Packages
- Engine Management Sensors
- Stand Alone Engine Management
- Engine Management Harnesses
- Shop All
- Air Induction
- Short Ram Air Intakes
- Turbo Inlet Hoses And Pipes
- Cold Air Intakes
- Air Intake And Maf Hoses
- High Flow Replacement Panel Filters
- Shop All
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.
PEOPLE WHO VIEWED THIS ITEM ALSO VIEWED
REVIEWS & CUSTOMER MEDIA
Fox
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.
GeorgeV
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.
Paul
I ordered this adapter with my Tomei Expreme Ti purchase for my 2017 Subaru STI. It fits perfectly from the downpipe to the catback. I would recommend this adapter over the provided gaskets from Tomei.
FranklinWaters
The shop that installed my Invidia N1 race exhaust ended up cutting off the flange for the stock downpipe and welding this on to install the CBE. It made the install easier and would have made it easier for me if the level of rust did not cause me to take the car to a shop to do it.
QUESTIONS & ANSWERS
-
Q: Tomei ti catback/COBB downpipe Nelson Asay6 months ago
is this what I would need to make sure the Tomei ti catback for my COBB downpipe to bolt up correctly?
-
-
0 of 0 people found the following answer helpful
A: Yes this should work!
Devan M. @ RallySport Direct 5 months agoWas this answer helpful?
-
0 of 0 people found the following answer helpful
-
Q: Installing Invidia Downpipe to N1 Race Exhaust Zystus7 months ago
-
-
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 5 months agoWas this answer helpful?
-
0 of 0 people found the following answer helpful
-
Q: Mazdaspeed Mazdaspeed 7 months ago
-
-
0 of 0 people found the following answer helpful
A: This is only confirmed to fit the Subaru models we cannot confirm them to fit the MazdaSpeed3.
Jared A. @ RallySport Direct 7 months agoWas this answer helpful?
-
0 of 0 people found the following answer helpful
-
Q: 2013 subaru wrx hatch w/ invidia r400 boxerengine118 months ago
-
-
0 of 0 people found the following answer helpful
A: You will need a new donut gasket.
Jared A. @ RallySport Direct 6 months agoWas this answer helpful?
-
0 of 0 people found the following answer helpful
-
Q: Correct adapter?? GeorgeV12 months ago
-
-
1 of 1 people found the following answer helpful
A: Yes, this will be the adapter you will need.
Tyler A. @ RallySport Direct 12 months agoWas this answer helpful? -
1 of 1 people found the following answer helpful
A: Answered my own question when I bought the Cobb downpipe and Invidia cst back: no you do not need this. Kinda peeved I wasted the money when the Cobb comes with a regular flange and just an adapter for the stock donut style.
GeorgeVWas this answer helpful?
-
1 of 1 people found the following answer helpful
