Lee TT

Jibbby, this is lee from alberta, ca, i have a 93 sc400 and i'm trying to find internet sites where i can order, performance parts. My plans are to install 2 turbo inline at the rear of the car where the spare tire sits, just wondering if you have info on how much boost that engine can take, or what to do to make it handle more. Any internet sites you know of would be handy too. Thanks Lee