Rule Specifications:
Air filters must remain stock as delivered from US Legend Cars International / USLCI. The filter element may not be modified in any way. There will be a thin foam pre-filter around the outside of the stock filter. This foam pre-filter must be installed properly when the car is on the racetrack & not altered of folded in any way. Both the air filter & pre-filter may not be soaked in any substance. The hold down nut must be tight & may be taped to secure it.
BANDOLERO AIR FILTER TECH TIP PDF
Penalties for Violation of this Rule:
If an inspector finds an air filter that has been modified, the inspector will disqualify the driver and confiscate the air filter.
If an inspector finds a car that does not have the foam pre-filter on the stock filter, the inspector will disqualify the driver.