The car has very little caster which makes the steering quite light and darty. Most cars have far more caster than these which makes for a heavier steering feel and some amount of self-stabilization. If the nervous feeling of the steering makes you uncomfortable or you just don’t like it, get the caster blocks to enable an alignment with more caster.Thanks for the info. I am not familiar with the suspension blocks. Is that a necessary upgrade?
I have the stock caster assembly but replaced the front and rear bushings. The front bushings improved the steering feel quite a bit and the rear bushings settled the odd nervous oversteer-understeer wobbliness of the rear when the car is driven to near the traction limit.
Probably the most popular non-cosmetic modification does these cars is a tuned ECU as they pick up quite a chunk of power from it. An intake greatly increases turbo noise, an exhaust can chance sound to taste, cosmetic upgrades are popular, and some go down the rabbit hole. You can get the exterior and interior redone in carbon if you like.