s2000 trade

ok guys i know i dont belong here, but heres the scoop anyways.

i have a 97 m3 with 70,000, my friend has a black s2000 2002 with 40000 miles on it. basically i want to know what u boys think the bimmer guys say no.

the main question is: what does it cost to mod this baby out, starting from air intake-exhuast all the way to internals for the engine with a turbo or supercharger? thanks dont hate me