Modifications

Stock

Street Touring

Street Prepared

Street Modified

Engine

X

X

X

X

Performance fluids

X

X

X

X

Performance filters

X

X

X

X

Performance spark plugs, ignition wires

X

X

X

X

Cat-back exhaust

X

X

X

X

Smaller battery/relocated

 

X

X

X

Cold air intake

 

X

X

X

Disabled ABS/Traction control

 

X

X

X

Chipped/Performance ECU

 

X

X

X

Alternate Ignition timing

 

X

X

X

VTEC Controllers

 

X

 

X

Underdrive pulleys

 

X

X

X

Short throw shifter kits

 

X

X

X

Aftermarket engine, transmission mounts

 

X

X

X

Aftermarket ignition system

 

 

X

X

Aftermarket alternator/starter

 

 

X

X

Aftermarket oil pan

 

 

X

X

Unrestricted intake system (stock turbo/supercharger)

 

 

X

X

Removed emissions equipment

 

 

X

X

Aftermarket fuel pumps and lines

 

 

X

X

Unrestricted exhaust

 

*

X

X

Aftermarket clutch/flywheel (metal)

 

 

X

X

Added or replaced LSD (non-stock)

 

*

X

X

Engine balancing and port matching

 

 

X

X

Engine swap

 

 

 

X

Added turbo or supercharger

 

 

 

X

Internal engine and/or transmission modifications

 

 

 

X

 

 

 

 

 

Suspension, Brakes, Wheels and Tires

Stock

Street Touring

Street Prepared

Street Modified

Adjustable shocks (stock dimension and alignment cap.)

X

X

X

X

Competition alignment

X

X

X

X

Alternate brake pads and/or fluid

X

X

X

X

Aftermarket front swaybar (may be adjustable)

X

X

X

X

Stock wheel width and diameter (offset within +- 1/4")

X

X

X

X

DOT race tires

X

 

X

X

Street tires (treadwear 140 or higher)

 

X

o

o

Street tires with a max width of 225 mm

 

*X

o

o

Aftermaket wheels, max width of 7.5"

 

*X

o

o

Coil-over adjustable perch shocks

 

X

X

X

Strut bars

 

X

X

X

Alternate suspension springs

 

X

X

X

Alternate front and rear swaybars

 

X

X

X

Alternate suspension bushings

 

X

X

X

Camber kits

 

X

 

X

Cross drilled or slotted brake rotors (stock size)

 

X

X

X

Stainless steel DOT brake lines

 

X

o

o

Wheels of any size, offset or diameter

 

 

X

X

Any brake line, master cylinder or vacuum booster

 

 

X

X

Traction bars added-live axle

 

 

X

X

Panhard Rod added-live axle

 

 

X

X

Modified upper linkage components-live axle

 

 

X

X

Unrestriced brake systems (big brake kits)

 

*

 

X

Unrestriced suspension components (stock pickup points)

 

 

X

Alternate steering components

 

 

 

X

Subframe connectors

 

 

 

X

 

 

 

 

 

Body (Interior and Exterior)

Stock

Street Touring

Street Prepared

Street Modified

Accessories, gauges, indicators-no affect on performance

X

X

X

X

Spare tire/jack removed

X

X

X

X

Roll bar/roll cage

X

X

X

X

Alternate seatbelts

X

X

X

X

Option package conversion-complete within same model yr.

X

X

o

o

Dress up items (dipsticks, filler caps, etc.-non-peformance)

X

X

X

Air conditioning removal

 

X

X

X

Pedal kits

 

X

X

X

Alternate front driver and passenger seats >15 lbs.

 

X

o

o

Trim removal

 

X

 

X

Rolled fenders

 

X

X

X

Additional spoilers and wings, bumper caps

 

X

X

X

Update/backdating of components

 

 

X

X

Fender modifications for tire clearance

 

 

X

X

Any front seat other than child seats

 

 

X

X

Alternate steering wheels

 

 

X

X

Airbag removal

 

 

X

X

Sound system removal

 

 

X

X

Replacement hoods, fenders, front and rear fascias

 

 

 

X

Rear passenger seat removal

 

 

 

X

Sunroof/T-top removal or replacement with panels

 

 

 

X

Ballast added

 

 

 

X

Multi-element wings

 

 

 

X

 

 

 

 

 

 

X

permitted

 

 

 

o

Permitted but addl. allowances on this item permitted

 

*

see STX allowances for this item

 

 

not permitted in this category