Figure I would give a quick update so if someone comes along wondering what to do to make their X perform a bit better has a bit more idea.
Extras I've recently put on
K&N open air filter, Removes the air can and decreases intake restrictions, obviously only available for injected, but I only paid about 35 from vickauto. Seems to help a bit, espically in Colorado where the air is kind of thin.
Front 7/8" anti-sway bar. The guy at vickauto said this was the most important upgrade you can do to the X. And smokes he was right, this really keeps the car sitting down, problem with one this thick is now the back inside tire picks up off the ground when I take a turn fast. Easy to fix that add a rear anti-sway bar. I paid 130 for the front, real real easy install.
Rear 5/8" anti-sway bar. Definatly keeps the back tire down more, but unlike the front bar, I hade to drill holes and mount brackets to the frame via drilled holes, and it is noticable that regardless of how hard I tighten the bolts there is still movement in the bracket. When I get more argon I plan to weld these brackets to the frame. Again about 130, bit of a hassle to install but not bad.
Feredo auto-X pads. I would not recomend upgrading to these 50 buck per pair pads unless you have steel lines and a clean brake system. The pads do stop a bit faster but my X, and I am sure is the case with most of them, is the rubber hoses gets old and clogged so the pedal is not as firm as would be nice.
I'll keep posting when I do more stuff to her.
1980 X-1/9 Black
# 99 DSP
"Roxanne"