Armytrix High Performance Down Pipe Catted:Yes (200 CPSI Cat) you can use a factory

you can use a factory in-tank or inline pump to feed the surge tank and keep it full in most applications

1997-2013 Subaru Forester EJ20/EJ25 Manual

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

Bore Size (mm): 85

Interchangeable faceplates

Armytrix High Performance Down Pipe Catted:Yes (200 CPSI Cat) you can use a factoryEnhance 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.