*Class Tag T/S
*1/4 mile, Heads-up, No Breakout, .400 Pro Tree
*Qualified 16 Car field with class placed on a pro ladder
*BODY: Any year car is allowed. You are allowed to have lightweight: Fenders, Sunroofs, Hoods, Hatches, Ground Effects and Bumpers. Quarter panels and doors must be steel.  NO one-piece front ends allowed.  You may not remove any body parts during the competition.
*CHASSIS: All cars are required to have a complete stock chassis 
*CLUTCH: Clutches that are manually operated by foot only allowed
*ELECTRONICS: Engine management, Two-step and Data loggers are allowed
*ENGINE: Catch Pan (Engine Diaper) is required and will be checked by Tech Officials.  Spills on the track can be a possible disqualification from any further DRN events and will be based on the discretion of the event director. 
*EXHAUST: Muffler(s) are required unless it is turbocharged. Exhaust exit may be anywhere
*FUEL: Gasoline and E85 are allowed.  Alcohol is NOT allowed
*FUEL SYSTEM: Only Electic Fuel Pumps are allowed / Aftermarket fuel cells are only allowed if in the OEM location
*GENERAL SAFETY: Any vehicle must abide by the rules and regulations of the general NHRA safety guidelines
*INTERIOR: Full interior from the front seats forward and Stock dash are required.  Passenger seat may be removed.  Aftermarket seats are allowed
*LIGHTS: Brake lights and Headlights are a requirement.  You may remove one light for induction
*NITROUS OXIDE: setup is limited to a single-stage plate located between the throttle body and the upper intake
*OILING SYSTEM: Dry sump oil system / external oil pumps are allowed on naturally aspirated cars
*SHIFTER: Shifter must be an H pattern.  No Air shifters will be allowed
*SUSPENSION: Aftermarket struts and shocks are allowed.  Four links/Ladder bars/Wheelie bars are not allowed on all cars
*TIRES: Tires will be measured by sidewall.  Maximum slick size or bias ply tire is 28.0" x 11.5"
*TRANSMISSION: Any Manual or Auto transmission is allowed.  Trans brakes are allowed.  Sequential transmissions are not allowed
*TURBOCHARGERS: Listed below are turbo size restrictions (all turbos will be measured at the inducer wheel where the inducer wheel meets the housing)
^6-cylinder: Buick engines 72.9mm single turbo
^8-cylinder: Chevy LS and LQ engines 67.9mm single turbo
^8-cylinder: Ford 302W engines are NOT allowed
^8-cylinder: Ford 5.0 Modular engines 67.9mm single turbo
^8-cylinder: Ford 5.4 Modular and Ford 5.8 Modular engines are allowed. NO turbos are allowed unless they are factory equipped.  Nitrous Oxide is allowed on 5.4 Modular. Superchargers are allowed but must run off a serpentine belt.  It can not be combined with Nitrous
^8-cylinder: Ford 4.6 Modular (4-valve, 3-valve and 2-valve engines) 72.9mm single  turbo
*WINDOWS: All windows MUST be OEM glass
^^Track Tech Officials have the final decision on the rules and regulations^^