I've only just recently loaded a 93 performance tune. It woke the truck up significantly.
I see that it has a tow tune, an 87 tune, mds & trans shift points I believe I heard were also avail. I'll do some more tinkering and report back.
Ryan -
"SuperChips"
It was definitely worth the $$$ and goes well with a new exhaust and full fluid changes to Amsoil. I also have the Mag-Hytech rear diff cover in place. My next upgrade will be the brakes and suspension. Good luck.
Mike De.