15.12 Tow Eyes
It is required that all race vehicles, except open-wheel (formula) cars, have at least two (2) easily accessible
(and usable) tow eyes, or tow points; one (1) in front and one (1) in back. They must not protrude dangerously
from the car or require manipulation of the bodywork and/or panels to access the tow eyes. If tow eyes or tow
points are not available the towing crew will hook onto other things that may cause damage to the driver’s car.
The tow crew and NASA will not be held liable for any damage.
The underlined section is worth noting. Imagine being stuck in kitty litter or damage. Will there still be access to the OE tow hooks? If not, they'll hook to something you might not want them to.
For $50. Is it worth risk? Most safety crews are volunteers. They are very good and do care. But it helps to make it easy for them too.https://www.flyinmiata.com/1990-97-flyi ... k-set.html