[Dean]

From what I've seen, the 82 and 83 Supras had single tips. 84-86 came with dual tips.
I've also been told that 82-84's had 1 and 7/8 inch diameter piping, whil the 85-86 had 2 inch. That's probably how they went from 160 HP in 84 to 161 HP in 85!!