If you go with the FRPP 525whp kit I don't think you would have any reason to worry but I'd say the "what if" might not make it worth it. Considering we can get upwards of 430whp with the basic bolt ons I'd just do that.
If I had your car this is what id do with that cash:
Steeda CAI and Tune
Steeda shifter
GT500 steering wheel
FRPP Handling Pack (you'll want this!)
Stainless steel brake lines and upgraded pads/fluid
I'd be tempted to run a quieter exhaust, too, since you probably don't want to piss off the local authorities too much. Swap the muffler deletes for a GT500 axle back.... quieter but still a sweet, sweet sound.
So then you're talking about around a 460 hp car with a sweet suspension.
Invest the rest of your cash and supercharge when you get back stateside.
