S2000 Challenge Series Classification

No changes are allowed to a car unless they are listed below. If a component or other modification is listed below, any type (or size) of that component is allowed, unless otherwise noted (ie. "sway bar" means adjustable or non-adjustable allowed). Additionally, aftermarket rollbars and racing seats are allowed in any class, but an approved seat must be installed in the passenger side. No parts, insulation or anything may be removed from a car to lighten it or for any other reason, except for the tire change kit (jack, etc.) and spare tire. If you have a question about any modification, please contact Aaron (mailto:[email protected]).

This classification system is subject to change at any time.

STOCK

Tires: up to 275 width rear tire, 100+ treadwear
Stock wheels only
Alignment – any setting
Any brake pad
Any modification to stock rotor
Any brake fluid
Brake ducting allowed
Brake dust shields can be removed
Brakelines
Any air filter


MODIFIED (same as Stock +)

Modification points
Any wheels 22
Springs (w/stock shocks only) 20
Shocks (w/stock springs only) 20
Calipers/Rotors 20

V-TEC Controller 20
Any cat-back exhaust 17
Front swaybar 15
Rear swaybar 15
Cold Air Intake 13
Aerodynamic additions 13
Clutch/Flywheel 13
X-brace 7
Headers 7
Modified throttle body 5
Strut-tower brace 3
Rear brace 3
Thermostat 3
Heat Shield 3

ANY MOD NOT LISTED ABOVE MUST BE REPORTED TO AARON. THOSE BELIEVED TO PROVIDE PERFORMANCE ADVANTAGES WILL BE ASCRIBED POINTS.

Points Allowed = 80 (if a car goes over 80pts, it is bumped into the PRODUCTION class)


MOD–R (same as MODIFIED +)

Any DOT tire (max width rear = 275)


PRODUCTION (same as MOD-R +)

Any suspension
Any modification (except power adders)
No points restriction

Any tire, any size


UNLIMITED

Anything goes (same as PRODUCTION + power adders)