Just to echo what others have said already really.
If you're planning to go stage 2, CP2 is the the way, as it's fine with standard cat. don't really need a sports cat anyway tbh -and DON'T get a decat.
Plus you can get CP2 at anytime, and unlock more potential in the mapping as and when your time and funds allow you to add more hardware. As @
Jaf2212 himself recently ran 236bhp with just intercooler and ITG - still standard exhaust and cat. For the same money, you would benefit more from an uprated intercooler - as with standard cooler you really do feel the heatsoaking effect in warm weather. I did last year, even at stage 1 revo.
As a bonus, it's also financially economical it's a stage 1 + 2 map in one
And this is coming froma revo guy haha. Love revo not gunna' lie!!