No, for a number of reasons. Apart from being a 1-human operation, standalone CFD is not a reliable predictor of turbulent effects, i.e. the spinning wheels and the nearby ground effects. I designed these parts after years of staring at aero features on Formula 1 cars, GT class race cars, supercars and hypercars and talking to their designers in some cases. There are a few fundamental principles I'm confident in and plenty of convergent designs to take inspiration from. That said, if you know of a wind tunnel with a rolling road that would be available to test my car for at least an order of magnitude less than it costs, let me know!

I stand behind the durability of my designs. If a part breaks in regular use for any reason, replacements are available for just the price of shipping. Please reach out via the contact links at the bottom of this site and be prepared with details as I will certainly want to consider making adjustments. 

If you are unsatisfied with your purchase for any reason, reach out within 30 days of delivery for a full refund, not including the cost of shipping the item back.

Prop 65's notices are ubiquitous but not technically untrue. Carbon Black is a known carcinogen, yet is frequently used in 3D-printing filaments for its deep pigmentation with inadequate warnings about potentially hazardous use cases. Carbon Black is also a major component of modern tires for crucial strength, wear resistance, and heat dissipation. Coincidentally, tires are the top source of particulate matter (not highly regulated exhaust emissions). 

So relatively, no, normal contact with this 3D printed material will not have an appreciable impact on your health. Do not attempt to ingest, and do take care if you prep these parts for paint. Most substances become irritants when sanded or ground into dust. The glass fiber reinforcement in this material is probably sharp, Carbon Black is a known carcinogen, and the PET plastic base material is not biodegradable. You do not want to inhale any of that. Use adequate PPE.