Cherry bomb exhaust.
Have you researched to see what mitsubishi parts will work on that motor? A lot of mitsu design went into the Dodge 4s. Back in the day, I rocked a pt cruiser for 8 months, and a buddy that had one had put some euro spec mitsu parts on his, it was pretty quick (just god awful ugly).
LSD would be nice if it isn't standard. Lowering and other suspension mods are a plus. Try to find modifications with a consistant powerband, that way if you do make an autox car you don't have to worry about having power when you need it and when and how it will react.
As for exterior styling the best looking neons emulate the aftermarkett styling of the bug eye wrxs.
