GrimmSpeed OEM Downpipe to 3in Cat Back Adapter - Multiple Subaru Fitments

SKU: 077046


OEM Downpipe to 3in Cat Back Adapter by GrimmSpeed

Exhaust leaks seem to be an all-too-common issue with most modded Subarus. 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.


  • Flanged for OEM Donut Gasket
  • Machined lip centers 2-Bolt Gasket
  • CNC Machined Steel Construction (Zinc coated for durability)
  • Simple bolt on installation


  • 2002-2020 Subaru WRX
  • 2004-2020 Subaru STi

What's In The Box?

  • 3" Double Thick Gasket

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