RX3 13b Turbo
 

If I wanted to put a stock FD engine in an rx3, maybe streetported, does that require a whole bunch of custom fabrication or is it pretty much plug and play?

depends on alot of factors, if you use 12a front cover it will be pnp in the car, but remeber the stock triggers will not bolt up to the 12a cover so it will be better to not use stock ECU and use a FC CAS. if you use 12A style flywheel (you need automatic fd counterweight) you can use stock gearbox (dont know how long it will last with turbo torque). or iy you use TII or FD box you can use stock flywheel.

for the rest you need to mount an intercooler, which isnt too hard, and a bunch of electronics. offcourse also fuel system, which will depends greatly on what you want out of it.

Thanks for the info. I had assumed some of what you told me and I'm glad to know I'm at least not completely clueless here hahahaha