littel more hp will not hurt, it is a hevy car ! not 600hp, but maby about 380-430 Hp (just about 100-150 hp more than standard).
Do you think this will hurt somthing on this car ? i have the NOS system in my mind becouse it is not so expensive like Turbo.
Futur this will only work when the car get full speed.

regards,
Sören