GrimmSpeed Stock Downpipe to 3-inch Catback Adapter

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 adapter. Use an adapter that allows you to retain your stock donut gasket for the best solution to finally end that pesky leak.  (We also stock the factory donut gasket, if you need one.)

Fits most any late-model Subaru with stock downpipe/J-pipe and an aftermarket 3" flat-flange exhaust system.