you're going to need fuel lines, upgraded fuel pump, the tranny idk I bet the stock one is weak but the 2g one won't bolt up but you can try. You're gonna have alot of problems doing this overall. But if you're serious go to 4g61t.com or mirageforums.net and ask there I haven't heard of anyone swap it in 5g.

I'd say your biggest problem will be checking the mounts, the tranny fuel lines, and you'll need a n/t flywheel and n/t clutch (di etc man it just goes on and that's what I just know from a 4g...

Just get a 1g turbo dsm and be happy or settle for a 89gt where everything just bolts up or a 89-92 where many have done it and you can get exact directions.

Just don't even start if you don't have $ for fucked up trannies, busted parts and unless you have all the tools and components.

Just my .02

Definetly use a 6bolt - that's 90-april of 92 I believe