as far as I know of, yes. BUT, the funny thing is, they get around such things byt having things like TRD that sell items to take away the de-tuning on the cars. This is probably why the Supras are SOOOO overbuild and seem to have intercoolers, ect that are meant for more.

i told my dad about it and he called it a cop-out. he feels thats the stupidest thing he'd heard of.....and then of course, the import bashing...

i kinda agree with him in a way, to the fact that they shouldn't have any cap. all go no holds barred, only restriction is what you can create reliably.

American Vs Jap MkIV

This is a good site for looking at the difference....only think i was sure of is that the Japanese Turbos are larger creating lots of Torque thet are also Ceramic

That, and the cams. Common and easy swap over there is to use the export cams...

I have a 88 supra turbo, 05 suzuki gsxr 600, and a 04 ford mach1 Love them all. all are different classes of cars. my 88 drives smoother than on 04 has more gadgets to! so I think drive and do what you like. :D

Engine transplants in my case are ok on smaller cars. Cars that no-body looks at and things, wow that will be powerful. Its the element of suprise. But when switching the engines of a supra. what is the point?, people will look at the car and think wow its a supra it should be powerful, because thats how they where built, when you transplant a engine people will look it and think its going to be powerful but they wont care because they already beleive them to be powerfull. Fair play to the work that goes into making the transplants but people. save your money. ;) you dont buy a supra to kill its name B)