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GrimmSpeed OEM Downpipe to 3in Cat Back Adapter ( Part Number:GRM 077046)

GrimmSpeed OEM Downpipe to 3in Cat Back Adapter

MODEL # GRM 077046
Manufacturer Part # 077046

$39.00

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Description
Exhaust leaks seem to be an all-too-common issue with most modded Subaru’s. They tend to spring up out of nowhere and cause hours of troubleshooting headaches. One of the most common leaks that we hear about is from running an OEM downpipe with an aftermarket 3" catback without a proper adaptor. Use an adaptor that allows you to retain your stock donut gasket for the best solution to finally end that pesky leak.

CNC machined from mild steel and zinc coated for durability and longevity, this thing will outlast your car. Don't waste your time trying to get your OEM downpipe to seal without a donut gasket. In a short amount of time, they rust and corrode and will prevent you from ever getting a good seal with a typical flat gasket. Re-use your stock donut gasket along with a GrimmSpeed 2x Thick 3" Gasket for a perfect seal on the first try!
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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.


SPECIFICATIONS

Brand: Grimmspeed
Gasket Layers: 3
Material: Stainless Steel
QTY: 1
Mfgr. Warranty: 2 Years
Return Policy:

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.
RallySport Guarantee

4.8

5 STAR
89%
4 STAR
9%
3 STAR
2 STAR
1 STAR
3%
Verified Purchase

Neat part!
andychobbs20230 11 days ago
Great part that needs slightly better, like 30 cents better, washers and hardware. GREAT PART. Lousy Washers. GS is an amazing company, so by the time you read this, they'll have that tidied up. I gave it four stars for value because I had to find washers that IMHO should have been included. I'd buy pretty much anything GS sells, so...
Verified Purchase

Quality as usual
singletrackmind57575440 2 months ago
Story to sum up this part: My Invidia catback came with bolts that didn't even fit the stock downpipe... I turned to the box with the Grimmspeed adaptor and thought "no worries, I bet Grimmspeed sent bolts for both stock and aftermarket DPs". Opened up the box, and indeed they had. Quality part from a quality company. Recommended for sure.
Verified Purchase

Thick
Silverfoz93 2 months ago
I didn't do the install I had some one else do it due to a lack of tools. I test fit the adaptor to a invidia g200 for a 04 fxt and it was a good snug fit. I watched the install closely the tech Had no issues with fitment.
Verified Purchase

Looks great and works even better
Simply Stu 4 months ago
Bought this along with my Invidia Q300 CBE for my 2015 STI. Looks amazing, and is made from high quality aluminum. Install was a breeze, I also bought a new donut gasket to get a fresh seal. The only thing I didn't use out of the box, were the nuts. I opted to go with copper nuts instead of the supplied ones, just for extra security. And I also used washers to fill in the gap between the two flanges. Also a big notice will be that bumper clearance will change a bit, due to the added extra 1/2". Worth the money, and so far with 1000K in there are no leaks at all.

Best stock to after-market exhaust adapter around!
SubieMan7 6 months ago
If your going for a cat-back exhaust with a stock downpipe, this adapter is a must to avoid leaking at the connection...

  • Q: Hello  jbang267 1 month ago

    Answer

    Hello, I was wondering if i had a Cobb catted downpipe Will this adapter work if i get a 3" catback system?


    • A: Yes, this adapter will work with that system and downpipe.


      Josh P. 1 month ago
  • Q: Fitment  WReXy 2 months ago

    Answer

    Is this what I need to be able to install my N1 CBE to stock downpipe? Heeeelp, didn't know before ordering the exhaust :/


    • A: This adapter is recommended for that exhaust while using a Subaru OEM downpipe.


      Evan M. 2 months ago
  • Q: Exhaust seal  Neez 06 3 months ago

    Answer

    I want to connect oem dp to 3in CB. To get a perfect seal with this product , will I still need to use the stock donut gasket on the dp side and a 3in gasket on the CB side?


    • A: Yes, you will want the OEM donut gasket on the down pipe, then the adapter, then the gasket to the catback. There is a picture under User Media on this product page that gives a good explanation of how the products should sit.


      Chris W. 3 months ago
  • Q: Fitting  Gregboy 4 months ago

    Answer

    I plan on buying the N1 Duel this week. You recommended this part, but when I added it to my basket it told me that it would not fit my 2015 WRX. Are you sure this is the right part?


    • A: Although your car is not on the confirmed applications list, I dont see there being any issues with using this adapter.


      Josh P. 4 months ago
  • Q: Exhaust Tips  AJ 5 months ago

    Answer

    how far will the Invidia N1 Dual Tips stick out when this is installed?


    • A: This adapter only adds about a half inch to the overall length.


      Nick S. 5 months ago
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