right had my car on rollers a couple of weeks back. it was running fine on cruise but very rich on WOT. it was also about 30bhp down on power.

i have just found out today after tinkering with car. that the up-pipe is leaking when i rev the engine...

now would the up-pipe leak cause all these problems running rich and down on power?

also what is best option for replacment. car is a 2001 bugeye wrx

 

Yeah leaking uppipe will make you lose power, get one from an sti, will straight fit and dosnt have cat in it.

 

ive a standard sti up pipe for sale if needed, yours still catted?

 

steve yes i will have the sti uppipe from you. pm me your paypal details

 

Will going from a cat to a decat uppipe need a map?