Hi have a replacement exhaust to fit to my 53 wrx but this will remove the last (3rd) cat aswell, will i have to have a remap or should it run ok?Thanks Ian.

 

Anyone know?

 

If your talking about the cat pipe, then yes you will be fine without a re-map.

Had mine on for a couple of months with no probs (MY03)
If you start changing the downpipe and up pipe then that should warrant a re-map.

Hope that helps

 

Thats just the information i wanted thanks for that mate.