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GrimmSpeed Aftermarket 3" Downpipe to OEM Catback Adapter

SKU 077044
Original price $57.00 - Original price $57.00
Original price
$57.00 - $57.00
Current price $57.00


Exhaust leaks seem to be an all-too-common issue with most modded Subarus. The most guaranteed leak you will get is if you run an aftermarket 3" downpipe to an OEM or OEM like 2.5" Exhaust. Compare our adapter to the competition and you will immediately see why we offer the best solution to finally end that pesky leak. Cut from Steel and hand welded these pieces were born tough. With the ability to work with both flat style gaskets AND donut gaskets they cannot be matched. If that wasn't enough we flared out one end to just shy of 3" so that unlike the competitors, our adapter will not block flow!


No one wants a leaky exhaust. The GrimmSpeed 3" Downpipe to OEM Catback Adapter is the best solution to the stubborn exhaust leak. With all hardware included this part goes on easy and prevents future leaks from your exhaust.


  • Flared adapter transition creates a smooth transition from your 3" downpipe to your OEM midpipe

  • Flanged for OEM Donut Gasket

  • Indestructible Steel CNC Laser cut construction

  • Simple bolt on installation with included hardware

  • Will Not obstruct exhaust flow like other adapters - Flared end guarantees smooth exhaust flow


2015-2021 WRX

2015-2021 STI