What i am wanting to do is put a larger throttle body on the 3s. The reason is that i am putting on a front mount and am wanting to achieve maximum flow, changing the size of the piping before the i/c won't help the flow, but if i enlarge the piping after the i/c it will flow better. But there is no point in making the piping larger than the throttle body as it will make a bottle neck.
To put on a larger throttle body, will i need to change the inlet manifold at the same time? Is the Group A throttle body larger than the Standard gen 2?
Bear with me as i'm currently unable to walk, so am unable to check sizes on the engine.