I want to change my auto to manual. I found a w58 for a decent price. I have the clutch cylinder and pedal what else would I need to accomplish this? See the kid that bought my car, and then basically gave it back to me, had started to collect this stuff so I thought why not? Now, my buddy who has changed several differant cars over, said I need the manual style break pedal for sure and then its a figure it out as we go method. What I need to know is the w58 an ok trans for a supra with basic mods like 3inch exhaust and a aftermarket airfilter and the turbo boosted to ten psi. The most I will do to this car is wide band o2 sensor lexus maf and 550 injectors it stops there for reliability reasons. Will this trans hold up to that for normal day to day driving with the occasional romp on the gas?