Borla XR-1 Single-Tip Cat Back Exhaust Subaru WRX / STI 2002-2007 vendor_Prosport Part #: SU301

Part #: SU301

rally and track use

BC 4340 steel Econo or Pro Series billet rods w/ARP 220

installation grease and instructions are included in each Whiteline swaybar kit for your WRX

Borla XR-1 Single-Tip Cat Back Exhaust Subaru WRX / STI 2002-2007 vendor_Prosport Part #: SU301Part #: 140075 The Borla XR 1 Single Tip Catback Exhaust for the WRX and STI features 3in piping with Borla's patented XR 1 multi core muffer for optimal flow. This system does not use a resonator like the Hush, so it has a deep, powerful tone. 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