can't answer the exhaust question, but i would guess at 2inch if you have the 5m-ge motor. you could ask that question on
www.celicasupra.com and they would be able to tell you fast.
the stereo is most likely a double din. i know they were in all supras. again, celiecasupras.com would have the answers for yah.
a friend of mine bought a strut bar for 10 dollars as well on ebay recently. i never heard if it worked or not, but he did receive it, and it looked good. for 10 dollars, who can complain right?
