pban

I have a STI 3 RA and would like to know if I have a cat in the centre pipe assuming I have one also in the down pipe

Paul

Jolly Green Monster 2

As far as I understand it the STi's only have a cat in the down pipe..

Someone else will confirm I am sure..

You just have a resonator instead (looks like a cat from the outside) to try and quieten it down slightly..

JGM

pban

JGM2

Thanks for that, so if I'm to do a decat downpipe say a scoobysport, I won't need to do the decat centre

Paul

pban

Anyone confirm this

Paul

Bob Rawle

Cat in downpipe only, resonator not cat in centre pipe which is still worth removing and replacing with a straight thro'.

Bob

pban

Thanks Bob