looking at getting a H&S exhaust for my hatchback STi,

Will a 2.5" system suffice for my needs, I will be following the exhaust with a remap and thats about it apart from tweaking the handling.

Any advice appreciated

 

2.5 system will be fine.. unless your thinking of big power

 

no really just the exhaust and a remap. 330 max is fine for everyday needs