Wr1 decat....cat help?!?
Posted: Wed Jan 30, 2013 1:59 pm
Has the wr1 got a sports cat as standard being prodrive or got one cat or two?? Getting a decat so just trying to get my head around it all, thanks
Super si wrote:Has the wr1 got a sports cat as standard being prodrive or got one cat or two?? Getting a decat so just trying to get my head around it all, thanks
Megaman wrote:Super si wrote:Has the wr1 got a sports cat as standard being prodrive or got one cat or two?? Getting a decat so just trying to get my head around it all, thanks
I thought there were 2 cats in total, one in the downpipe or uppipe and one in the 2.5" prodrive exhaust system. Could be wrong though..
For a full flowing exhaust system you should have full 3" system with flow matched uppipe and downpipe. Headers add a lot of power especially unequal length ones but you will lose the subaru burble when on boost. Off boost you can still tell its a subaru approaching, ive got unequal length headers and mine sounds like an angry wasp when on boost - rather awesome if i must say so myself
WR 1mpostor (aka number 1 moderator) wrote:Megaman wrote:Super si wrote:Has the wr1 got a sports cat as standard being prodrive or got one cat or two?? Getting a decat so just trying to get my head around it all, thanks
I thought there were 2 cats in total, one in the downpipe or uppipe and one in the 2.5" prodrive exhaust system. Could be wrong though..
For a full flowing exhaust system you should have full 3" system with flow matched uppipe and downpipe. Headers add a lot of power especially unequal length ones but you will lose the subaru burble when on boost. Off boost you can still tell its a subaru approaching, ive got unequal length headers and mine sounds like an angry wasp when on boost - rather awesome if i must say so myself
The only cat on a WR1 is the downpipe, there are 2 cats on STI's !