Looks to me like they had to relocate the radiator outward toward the bumper more, too, along with removing the fan for the AC. A pair of Spal fans on the front of the radiator would probably do, too. A set of headers can be had for another few hundred dollars beyond that, and you'd have to figure out exactly how to mate it up with your exhaust, otherwise. I consider all of this in the realm of very feasable, but you'd need a goodly amount of time to get everything working hunkey-dorey. I do have to wonder how much dash-related stuff runs through the factory ECU, though. Hmm. Anyone tried pulling the ECU, and turning the car on to acc mode?