I have a 04 Si and all they make for my car is an alternator pulley. Since the motor in the RSX is about the same would I be able to buy the kit for the RSX and put the pulley kit on my car? I was just wonder if the pulleys on both cars were about the same and I could do that.

 

imo, save your money. you won't get any gains from it. save your money for something worthwhile.