Right I should have been more clear. In Stock class you can replace the shocks/struts, including using adjustable as long as they use the same mouting points. You can also replace the front, but not the rear swaybar.
Springs & Bushings are not allowed to be changed.
You can get a cat-back exhaust and a high flow air filter, and any DOT approved tire that fits on the stock wheel size & in the wheel wells.
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