Armytrix High Performance Down Pipe Catted:Yes (200 CPSI Cat) Both end ports are machined

Both end ports are machined with 8AN ORB (3/4-16 female) threads

2008-2014 Subaru STI (5x114

(x2) Brand New Subaru OEM WRX FA20 Cylinder Head Castings

Interchangeable faceplates

Armytrix High Performance Down Pipe Catted:Yes (200 CPSI Cat) Both end ports are machinedEnhance your vehicle by adding the ARMYTRIX exhaust system to increase power, reduce weight, and improve sound. This precision made performance system delivers more power, especially in the low and mid rev range, the effect on the sound is significant, adding a deep resonant sporty sound, but at the same time neutralizes the annoying frequencies in the most critical rpm range.