Invidia Down Pipe "AUSTRALIAN SPEC" with Hi Flow Cat (WRX/STI 01-07)
The Invidia Catted Downpipe features a Open Mouth Bellmouth with a 100cell Cat at the top of the down pipe. Designed in Australia
Invidia's all new Australian Spec downpipe is a great way to start getting performance HP and Torque.
The Invidia downpipe is constructed of 304 stainless steel tubing to ensure longevity while enhancing power by freeing exhaust flow. 3" mandrel bent piping will bolt up to any stock replacement catback or stock unit.
And the Australian Designed Stainless Cast Head ensures perfect flow.. This is the most advanced Down pipe on the planet for flow and fitment.
No Steering Knuckle is required with the Aus Spec Down Pipe