How do you make your Toyota conquest faster?

Unless it's a turbo engine, there really isn't much that can realistically be done on modern cars. You can install a low resistance air filter, and a free-flowing exhaust together with a race cat. but that's about it. At best it'll give you something like 10 hp extra at full throttle.

'Course, you can add a nitrous bottle, and have the engine management remapped for that. That can give a quite nice shot of extra hp for the duration of the bottle. But then you can forget all about any warranties if the engine blows.