the site is www.japandomesticmotor.com im not sure if the tt will fit in my 88 gx it says for year 93-96 if possible wat mods have to be done for it to work smoothly

 

TT is out of an FD rx7. If you aren't aware of the differences, you shouldn't be trying to put it in.

Here they are, the primary ones:

Engine mounts
Engine control unit
Wiring harness
Intercooling system
Exhaust location
Oil cooling system

 

LOL, he's right

 

Nice