I'm planning how to go about getting a mk2 MR2 with a 2GR-FE while I save money to get the car, the engine and the other bits to do the conversion and my thinking was to get an M-reg or older turbo because it wouldn't need a cat and also it would already have the E153 gearbox and brakes big enough to cope with when it has the 2GR-FE in it. I thought the extra money for a turbo model would probably be worth paying as I could get a newer car that doesn't need a cat than if I got a NA plus I get a stronger gearbox and bigger brakes. Have I got this right or does it not really matter?