Pulley's are cheap, intercoolers can be beat by Meth and E85 and its cheaper and WAY easier because you DON'T have to worry about a vacuum leak...also...too bad you never gave the guy an option on how to tune his car with those mods...example HPT or DHP software.
To finish it all off, N*'s suck and the pedal feel BLOWS compared to my LS1 and your car is slow.