Hi, i am looking to replace my front cat. And are unsure which downpipe to go for. My car has a front cat back Jap system.

Which downpipe to go for?
Does it need to be wrapped?
Do i need an up pipe?
Is it worth replacing the headers while im doing the down pipe?

Sorry for all the questions but i am a newbie in search of info.
Many thanks in advance.

 

What age and type of car

 

Sorry. 96 STI

 

If your exhaust is 2.5 in diameter go for the ninja sports cat DP £299 from Scoobyworld.

Good idea to wrap; helps reduce engine bay temps

AFAIK Up pipe of that year has not cat, so you don't strictly need to replace it. You may benefit from a better one though.

Wouldn't go for aftermarket headers unless yours are in a poor state. Just get your headers ported and wrapped.

Problem is, AFAIK you're going to need a new ECU and remap with that little lot to keep the car running safely

Have a word with someone like David at API, or your local ubaru specialist.

Ns04