I have a celica 2000 gts auto and I also have the chance to switch gears at the steerwheel, I have the 4 buttoms to up or doenshift. I would like to put a trubocharger or a supercahrger on my car. I have seen the Blitz and the xs. My question is would they work on an auto gts? What will you suggest me? Is there any other turbocharges for auto gts?