different engine intercooler and gearbox dude - the St205 got the best 3s package ever put together from the factory ..
I could have put you onto a group a gen 3 engine , GB and loom - but its already sold and beingf swapped into another st165 i believe in melb
Im going out on a limb here but rollins in QLD seem to get these cuts fairly regularly compared to all the other dealers ive scrounged from - Cool1 off this forum might be able to help you out here