Borla Hush Twin-Tip Cat Back Exhaust Subaru WRX / STI 2002-2007 vendor_Goodridge It's a win/win situation with

It's a win/win situation with this unit

direct replacement or upgrade to the standard

Note: Are you using a stock j pipe or downpipe

expect the wait

Borla Hush Twin-Tip Cat Back Exhaust Subaru WRX / STI 2002-2007 vendor_Goodridge It's a win/win situation withPart #: 140053 The Borla Hush Twin Tip Catback Exhaust for the WRX and STI features 3in piping with a resonator and quiet twin tip muffler. This is an exceptionally quiet exhaust for the WRX & STI. The section of the catback that bolts to the downpipe is slip fit, and can be replaced with the 3in adapter for future upgradability. The downpipe section Borla includes will bolt perfectly to your stock downpipe, but the optional 3in adapter simply bolts