GrimmSpeed Subaru OEM Downpipe to 3" Catback Adapter - Multiple Subaru Fitments Subaru STI Crafted from hardcore CNC laser

Crafted from hardcore CNC laser cut 12L14 with multi-point welded fabrication

A little research showed that this was a common issue

Inspiration for the StealthBox Intake came from internal discussions about what GS wanted from an intake system for the 2015+ WRX

that's what I thought

GrimmSpeed Subaru OEM Downpipe to 3" Catback Adapter - Multiple Subaru Fitments Subaru STI Crafted from hardcore CNC laserExhaust leaks seem to be an all too common issue with most modified Subarus. They tend to spring up out of nowhere and cause hours of troubleshooting headaches. Compare our adapter to the competition and you will immediately see why we offer the best solution to finally end that pesky leak. 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. The other most common leaks that we hear