Yeah, custom kits are fairly common nowadays. A local guy had a custom kit on his base RSX and was putting down somewhere in the neighborhood of 240whp, if I remember correctly. Whatever you end up doing, most def. use K-Pro for engine management purposes.
look at my signature....all that for $3500.its a bigger turbo than any of the kits come with and upgraded injectors to run any boost and kpro.doesnt get any better than that for bang for your buck.dyno sheet coming soon.looking to put down around 300whp at 8.5-9 psi.