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GrimmSpeed OEM Downpipe to 3in Cat Back Adapter  (Part Number: )
GrimmSpeed OEM Downpipe to 3in Cat Back Adapter  (Part Number: )
GrimmSpeed OEM Downpipe to 3in Cat Back Adapter  (Part Number: )
GrimmSpeed OEM Downpipe to 3in Cat Back Adapter  (Part Number: )
GrimmSpeed OEM Downpipe to 3in Cat Back Adapter  (Part Number: )
GrimmSpeed OEM Downpipe to 3in Cat Back Adapter  (Part Number: )
GrimmSpeed OEM Downpipe to 3in Cat Back Adapter  (Part Number: )
GrimmSpeed OEM Downpipe to 3in Cat Back Adapter  (Part Number: )
Community Media
GrimmSpeed OEM Downpipe to 3in Cat Back Adapter  (Part Number: )
GrimmSpeed OEM Downpipe to 3in Cat Back Adapter  (Part Number: )
GrimmSpeed OEM Downpipe to 3in Cat Back Adapter
Subaru Turbo Models
Read 44 Reviews | 39 Q&As
Part # 077046
$39.00

In stock! Ships same day

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

Brand: GrimmSpeed
Gasket Layers: 3
Material: Stainless Steel
QTY: 1
Mfgr. Warranty: Lifetime
Condition: New Product
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.
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REVIEWS & CUSTOMER MEDIA

44 Reviews
4.8 out of 5 Stars
5 Stars
(40)
4 Stars
(3)
3 Stars
(0)
2 Stars
(0)
1 Stars
(1)
Customer Photos and Videos
GrimmSpeed OEM Downpipe to 3in Cat Back Adapter  ( Part Number: 077046)
GrimmSpeed OEM Downpipe to 3in Cat Back Adapter  ( Part Number: 077046)
Excellent Product! 16 days ago
5out of 5stars

A must have for anyone running a catback with the OEM downpipe! Hardware is top notch as well!
  
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Perfect  1 month ago
5out of 5stars

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!
  
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Perfect 5 months ago
5out of 5stars

Great part worked great no leaks
  
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It Works 11 months ago
5out of 5stars

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.
  
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1 of 2 people found the following review helpful
Make sure you need it before you buy it.  1 year ago
5out of 5stars

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.
  
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QUESTIONS & ANSWERS

  • 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
    • 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 ago  
        
      Was this answer helpful?
  • Q: Donut Gasket  samfrench5524 days ago

    Will I also need an OEM donut gasket to help seal the exhaust?
  • Q: Invidia N1 Cat Back  doucheung08710282 months ago

    does this fit with the Invidia N1 Dual tip cat back exhaust with the OEM downpipe? or do i actually need to get this? Thanks
    • 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 ago  
        
      Was this answer helpful?
  • Q: Tomei ti catback/COBB downpipe  Nelson Asay8 months ago

    is this what I would need to make sure the Tomei ti catback for my COBB downpipe to bolt up correctly?
  • Q: Installing Invidia Downpipe to N1 Race Exhaust  Zystus9 months ago

    I am currently using this on my stock DP with the Invidia N1 Race Exhaust but now I am going to buy an Invidia Downpipe, would this still work? Or do I have to buy another gasket for the set up?
    • 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 ago  
        
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This Part Fits

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WRX
2002 Subaru Impreza WRX
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WRX Limited
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2010 Subaru Impreza WRX Premium Hatchback
2011 Subaru Impreza WRX Premium Hatchback
2012 Subaru Impreza WRX Premium Hatchback
2013 Subaru Impreza WRX Premium Hatchback
2014 Subaru Impreza WRX Premium Hatchback
WRX Premium Sedan
2010 Subaru Impreza WRX Premium Sedan
2011 Subaru Impreza WRX Premium Sedan
2012 Subaru Impreza WRX Premium Sedan
2013 Subaru Impreza WRX Premium Sedan
2014 Subaru Impreza WRX Premium Sedan
WRX STI
2004 Subaru Impreza WRX STI
2005 Subaru Impreza WRX STI
2006 Subaru Impreza WRX STI
2007 Subaru Impreza WRX STI
WRX STI Hatchback
2008 Subaru Impreza WRX STI Hatchback
2009 Subaru Impreza WRX STI Hatchback
2010 Subaru Impreza WRX STI Hatchback
2011 Subaru Impreza WRX STI Hatchback
2012 Subaru Impreza WRX STI Hatchback
2013 Subaru Impreza WRX STI Hatchback
2014 Subaru Impreza WRX STI Hatchback
WRX STI Limited
2007 Subaru Impreza WRX STI Limited
WRX STI Limited Hatchback
2011 Subaru Impreza WRX STI Limited Hatchback
2012 Subaru Impreza WRX STI Limited Hatchback
2013 Subaru Impreza WRX STI Limited Hatchback
2014 Subaru Impreza WRX STI Limited Hatchback
WRX STI Limited Sedan
2011 Subaru Impreza WRX STI Limited Sedan
2012 Subaru Impreza WRX STI Limited Sedan
2013 Subaru Impreza WRX STI Limited Sedan
2014 Subaru Impreza WRX STI Limited Sedan
WRX STI Sedan
2011 Subaru Impreza WRX STI Sedan
2012 Subaru Impreza WRX STI Sedan
2013 Subaru Impreza WRX STI Sedan
2014 Subaru Impreza WRX STI Sedan
WRX STI Special Edition Hatchback
2010 Subaru Impreza WRX STI Special Edition Hatchback
WRX Sedan
2008 Subaru Impreza WRX Sedan
2009 Subaru Impreza WRX Sedan
2010 Subaru Impreza WRX Sedan
2011 Subaru Impreza WRX Sedan
2012 Subaru Impreza WRX Sedan
2013 Subaru Impreza WRX Sedan
2014 Subaru Impreza WRX Sedan
WRX TR
2006 Subaru Impreza WRX TR
2007 Subaru Impreza WRX TR