what is this heard it talked about is there one on my 95 classic wrx import what does it do

 

It is the pipe that links the manifolds to the turbo,
A GOOD QUALITY aftermarket one will free up the gas flow and make a little more power.

 

so worth changing then. was going to get a 3 inch full decat so was wondering if should change the up pipe to. Is it easy to change

 

No, not the easiest thing in the world but probably worth the skinned knuckles!!!

 

dont think you need to change the up-pipe mate, as on early wrx's, if swapping for a full decat such as i did, you just swap the old cat downpipe/up-pipe for a decat downpipe. i think i got that right. 3 piece exhaust system then.

andy

 

I beg to differ,
The oem up pipe is a small diameter and if they have not started to rattle already the heat shield will be rattling very soon.
Change it for a GOOD larger bore pipe and you will not regret it, after all whats another £100 odd???
This pipe has nothing to do with after turbo 3 piece systems, it comes before the turbo.

 

oh right, i wasnt to sure on that one. well this is what i took off my car...



and i replaced it with this...



so have i changed the downpipw and up pipe or what. im confused now...

andy

 

Thats the down pipe,
You can only see the up-pipe from under the engine, hence all the skinned knuckles when changing it.

 

oky doky. this is what it looks like from looking in at the engine. to me to downpipe goes right to the back of the turbo, or is it a different set up for classics??

if ive got it wrong can you point out where the uppipe is for reference please, not so clued up on this...

andy

 

See that nut, almost dead centre of your picture but very near the bottom of the image.
That is one of the up-pipe studs.
Now do you see why I say..............Skinned knuckles

 

this one by any chance...

 

Thats the one.

 

For the amount of trouble that changing the up pipe will cause; it really isnt worth the bother. When you have fettled manifolds or decent matched equal or semi-equal (whats the point in that?) manifolds then there may be something to gain from fitting a matched replacement up pipe. Until then Id suggest spending your time and money elsewhere.

Simon

 

like on bigger brakes and a replacement ecu

andy