new '03 sequoia: need help with parts

hey guys
i bought a '03 sequoia with like 20,000 miles on it. the previous owner said he went through hell with it and that it was a lemon. so far ive had no problems. but ok
here's the deal
i live in houston Tx so we get lots of water
and when we get it we get lots of high water
i want to add a supercharger
a snorkle
new exaust and possible put it up on slightly raised stiffer suspension
something for like dirt track racing

idk what im getting into
but i want to keep the body as stock as possible and make a beast engine

so if anyone has any experiance
or anyhelp to offer please send it my way

you can email me at
[email protected]

thanks again guys

thanks for all your help guys