my 1997 supra tt is fast but i want to get greedy and make it 900hp im a car sales man so i know about cars but not about turbos or mechanic work basically i want my whip 900hp fast and i want it to be loud lik a jet taking off sik please anybody how can i do it and how much am i looking in $pending thanks ppl later!!!

Take is to Twins Turbo Motorsports and give them $40,000-$100,000
Btw, a 900hp Supra won't be much faster on the street than a 450hp one. It will cost more, break more and be damn near impossible to drive though.

What you are talking about is how can i say it-leave it to the professionals. You are talking about much more than simply a few engine modifications here, You are going to probably need to go with a whole different engine, different transmission, modify the drivetain-really its going to cost much more than the car is worth. Such modifications would take expert mechanics, not some shade-tree backyard guys.
There arent many cars that hit 900hp, and the ones that do are so modified they really arent for street use.