STOCK DIESEL - Tune and exhaust ONLY(no upgraded turbos, will pull chargers).
SEMI STOCK DIESEL | 1. Stock appearing turbo. 2. Tag & Insured. 3. DOT tires.
MODIFIED DIESEL | Run what you brung. Helmets required. Fire suits highly recommended.
STOCK GAS | Exhaust and intake only. No power adders. Must drive to the event. 1/2 trucks only.
SEMI STOCK GAS | 1. No power adders. 2. Factory frame. 3. DOT tires. 4. One ton axles or less. 5. Must be 4x4. 6. Up to 3 bolt-ons (bolt-on examples: headers, carburetor, intake). 7. Track officials call.
MODIFIED GAS | 1. Must be a factory style truck frame. 2. DOT tires. 3. Run what you brung. Helmets required. Fire suits recommended.
OPEN | Run what you brung. Intended for promos and anyone that can stand next to them!
SXS | Run what you brung.
ATV/DIRT BIKE | Run what you brung.