try searching and maybe posting this in the ej20-ej25 forum. Anyway, most DPs that i know of come with highflow cat as a sperate piece or some such as Bosal use the OEM midpipe which is your third cat and replace the 2nd cat. I suppose you could buy any DP, hack the center and weld in a highflow cat.

 

MRT does, it'd be a special order through MPJ, I believe...

 

And only elevendy million dollars.

MRT's stuff is so expensive it's not even a consideration.

 

doy ou want all cats or just the last one cat?

txs makes it, its a high flow cat

 

random tech

 

PDE looks interesting... a bit expensive too

 

APS puts a hight flow cat in the DP spot.

http://www.aps-wrx.com/us_spec/subar...wrx-hoe-r5.htm