I give you props also for running your boosted car, I'm seeing a lot more guys going that route and not posting slips.
I would def invest in some meaty rubber and head back...it's hard enough being stock and not smoking the tires, while you have added another 100+ ponies. I'm not a fan of canned tunes either..I would make that #2 on my list.
Good luck homie, looking forward to seeing you make some blistering passes.