WRX Challenge Series Classification (Draft 5)

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 225 width tires, 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
Any oils
Any plugs
Any coolants

MODIFIED (same as Stock +)

Modification points

Any wheels 20
Springs (w/stock shocks only) 20
Shocks (w/stock springs only) 20
Full Coilovers 50
R-Compound Tires 60
Calipers/Rotors 15
Boost Controller 15
Unichip 15
Air Fuel Computer 25
Any cat-back exhaust 15
Intercooler (w or w/o water injection) 15
Down pipe 10
Up pipe 10
Headers 15
Front swaybar 15
Rear swaybar 15
Cold Air Intake 5
Aerodynamic additions 13
Clutch/Flywheel 10
X-brace 7
Modified throttle body 5
Strut-tower brace 3
Rear brace 3
Thermostat 3
Heat Shield 3
Pullies: 3
Anti-Lift Kit: 10


Points Allowed = 80 for sedans, 85 for wagons (if a car goes over point limit, it is bumped into the Mod-R class)


MOD–R (same as MODIFIED +)

140 pt limit (145 for wagons), using same point values as Mod


PRODUCTION (same as MOD-R +)

Any suspension
Any modification (except changing turbo)
No points restriction

Any tire, any size


UNLIMITED
Totally open, but car must start life as a WRX/Imprezza