^^^thanks that really help, i'm not trying to do anything serious with performance mods, just maybe an intake and spacer, also, would oem 19's hurt my speed compared to my stock 17s? i know the rotational mass is more but they seem to be as light or close to the stock 17s.

 

oem 19s are lighter than the 17s since they are forged so your acceleration will improve along with your hanlding. Steering response will increase since you now have more rim than rubber. It's definitely an upgrade from the 17s