actually i will be running DSP where a cage is considered legal, but a swap is not. I do not run slicks for the class i am in, i must run a dot approved tire. And you dont need to run slicks in honda challenge either. The sanctioned tire for the honda challenge was the toyo ra-1 and from what i gathered that is not a slick.
And why would i go with an aluminum kirkey race seat when i can get a recaro or sparco that is approved? This car is not a fully built race car as of this point and is still a daily driver, at least once it gets a motor put into it.
With my suspension mods and minor engine mods i was out of stock class a long time ago, i have been autocrossing since 2002 and also competed in a couple nasa sanctioned events until a bump and off road excursion led to a totalled car and a hurt back.
So to be competitive down here you need skill, not tire, even though tire helps you do not need a slick to be competitive in a parking lot. Oh and i have a friend that has a full race prepped eclipse, and hes not on slicks, last i heard he was on a ra-1 set of take offs.