Hi, i am looking to buy an s3 soon but am confused with the differences. From what i have read on the internet there is the pre-face lift s3 (210) which goes up to a Y plate then the face lift s3s were out but still with the 210 engine? then 2001/2 onwards its 225?

I will be looking to tune the s3 slightly, i have heard that after a map the 210 and the 225 engines come out the same.. however on the superchips website they are different?

Also, tuning.. originally before i looked into s3s more i would say i wanted a FMIC, diverter valve, induction kit and exhaust followed by a remap...after looking into them more, the s3 has 2 intercoolers, are they sufficient or would it be worth getting a FMIC? Apparently the exhaust on the s3s are not that restrictive it is just the manifold, so would i be better off buying a new manifold rather than a whole new exhaust?

Thanks in advance for your help.