99greenwagon

iTrader: (39)

hi, can anyone tell me a prodrive sports cat downpipe will fit to existing oem system on a 2005 pre facelift forester sti?
The downpipe does not include the lower part,so just upper part bolting directly to oem lower part?
thanks.

Don Clark

You would need to modify a newage 2nd cat delete pipe to suit as the FSTi runs a "classic" style 3 piece exhaust which has the donut joint in a different location to a newage system.


This topic has been covered many times in the European forum over on Subaruforester.org
Just one example
http://www.subaruforester.org/vbulle...wnpipe-693570/

99greenwagon

iTrader: (39)

thanks don, can you confirm, if i was to purchase a newage impreza sti prodrive cat downpipe upper section, then a newage impreza sti lower downpipe section, and then an impreza sti newage centre section, would this all fit and match up to my existing backbox?
thanks

Don Clark

Replacing everything with "newage", apart from the back box, should work, although you would need to check the location of the rear lambda (o2) sensor
Prodrive newage sports cat downpipe with 2nd cat delete pipe

99greenwagon

iTrader: (39)

thanks don, if its just a lambda boss reposition, i can sort this as my brother is a stainless welder, just didnt want the hassle of having to chop,shorten,extend etc.
is that for sale?

Don Clark

Image for illustration only