Hi all, this may well be a daft ? But I have to know, what is the difference between a turbo up pipe and down pipe, are they one in the same ? I've read reference to both ie Up pipe/Down pipe and 1st decats ??? is the cat in either of these pipes - I know theres 2 cats fitted in all, Cheers folks.............

 

This has all the answers it seems

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There is a cat in the up pipe (pipe that connect the headers to the turbo) and then 2 cats in the downpipe.

 

An up pipe goes upto the turbo from the headers and the down pipe is the first section of the exaust from the turbo

 

Nice one thanks for that..............

 

Sorry to bring this up, but is my 98 WRX (UK spec) going to have a cat in the up pipes?

 

I think only nawage wrx cars have the cat in them

 

Nice! Cheers for the response- they looked like a bit of a beast to change.