The GrimmSpeed downpipe adapter allows you to properly seal an aftermarket 3″ downpipe to a 2.5″ OEM or OEM-style cat-back exhaust. This adapter works with all 2002-2021 WRX and STi models as well as most Subaru turbo models.
Vehicle Fitment:
2002-2021 Subaru WRX
2004-2021 Subaru WRX
Fits most Subaru Turbo models
Purchase Includes:
(1) Adapter
(2) Bolts
(4) Washers
Features:
• 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 bolts included
• Will Not obstruct exhaust flow like other adapters
• Flared end guarantees smooth exhaust flow
More from 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. The most guaranteed leak you will get though 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!
A final solution to pesky problems, it’s what you can expect from GrimmSpeed!”
