As above,thinking of getting rid of another cat on my bugeye,out of the two which is easiest to replace,and which will give me more power overall when mapped.Am i right in thinking if i leave one alone it will be mot friendly.
Any feedback appreciated,cheers.

 

The easiest is the downpipe. It will also release the most power. IMO you would be better getting a sports cat (they turn up on fleadbay) and using this, no worries at MOT time.

You will however need a remap.

 

Thanks for that,but would i have to use a sports cat on the downpipe if i left the original up pipe in place.

 

Not 100% sure, but I think you would still need the sports cat for the MOT.