Looking for something like a 1.75" decat up pipe (so not a large aftermarket thing that will ruin my spool ) 

 

Thanks in advance :) 

 

(to fit a 2003 Blob impreza)

you want a 2.5" as a 1.75 will restrict the spool

On the up pipe? I have been told that 2" is too big?

ive been told by a few people that if you get a STD one off a STI it will fit, so you need to find a STI blob uppipe, usually about 20-50 quid

I will do that then :) cheers man