Modification Description (Updated 9-12-2006)
(Did you do the following to your car?)
Yes
or No
Stock
Legal
STS
Legal
STX
Legal
STU
Legal
SP
Legal
SM
Legal
Tires & Wheels
Change Rim Diameter?   No Yes Yes Yes Yes Yes
Tires Wider Than 225?   N/A No Yes Yes N/A N/A
Tires Wider Than 245? (*STU All Wheel Drive)   N/A No No No* N/A N/A
Tires Wider Than 275? (*STU Two Wheel Drive)   N/A No No No* N/A N/A
Tire Treadwear Rating Less Than 140?   N/A No No No N/A N/A
R Compund Tires? (e.g., Hoosier, Kuhmo V700, A032R)   Yes No No No Yes Yes
How Wide Are Your Rims?   Stock 7.5" 8.0" N/A N/A N/A
Suspension
Removed, Changed or Modified Front Sway Bar?   Yes Yes Yes Yes Yes Yes
Changed Front Sway Bar Bushing Material?   Yes Yes Yes Yes Yes Yes
Removed, Added, Changed, Or Modified Rear Sway Bar?   No Yes Yes Yes Yes Yes
Changed Rear Sway Bar Bushing Material?   No Yes Yes Yes Yes Yes
Changed Spring Rates?   No Yes Yes Yes Yes Yes
Installed Camber Plates?   No Yes Yes Yes Yes Yes
Installed Front or Rear Shock Tower Brace?   No Yes Yes Yes Yes Yes
Installed Shocks With Adjustable Valving?   Yes Yes Yes Yes Yes Yes
Replaced Struts With Coil-Overs Suspension?   No Yes Yes Yes Yes Yes
Changed Suspension Bushing Material?   No Yes Yes Yes Yes Yes
Added A Track Bar or Panhard Bar?   No Yes Yes Yes Yes Yes
Did You Lower Your Car?   No Yes Yes Yes Yes Yes
Brakes  
Changed To Steel-Braided Brake Lines? (*Years 1992 & Above)   No* Yes Yes Yes Yes Yes
Changed Diameter Of Brake Rotors?   No No Yes Yes Yes Yes
Installed Drilled Or Slotted Brake Rotors?   No Yes Yes Yes Yes Yes
Upgraded Brake Calipers From Stock?   No No Yes Yes Yes Yes
Installed A Non-Stock Proportioning Valve?   No No No No Yes Yes
Engine & Air Intake System
Made Any Internal Engine Modifications?   No No No No Yes Yes
Is Your Engine Still Emissions Legal?   Yes Yes Yes Yes No No
Changed ECU Software, Chip, or VTEC Controller?   No Yes Yes Yes Yes Yes
Changed wastegate, pop-off valve, or supercharger pulley?   No No No No No Yes
Changed Boost Control Or Levels?   No No No No Yes Yes
Changed To Less Restrictive Air Filter in Stock Airbox?   Yes Yes Yes Yes Yes Yes
Changed Stock Airbox?  (e.g., Cut Lid, Cone Added Filter)   No Yes Yes Yes Yes Yes
Installed Larger Throttle Body?   No No No No Yes Yes
Changed Intake Manifold Or Injectors From Stock?   No No No No Yes Yes
Changed Cam or Valves From Stock?   No No No No No Yes
Installed Emission Legal Headers?   No Yes Yes Yes Yes Yes
Installed High-Flow Catalytic Converter?   No No Yes Yes Yes Yes
Installed Underdrive Pulleys On Accessories?   No Yes Yes Yes Yes Yes
Added Or Changed Turbo Or Super Charger?   No No No No No Yes
Added Or Changed Intercooler?   No No No No Yes Yes
Swapped Engines Other Than Strict Stock Replacement?   No No No No Yes Yes
Added Limited Slip Differential?   No No Yes Yes Yes Yes
Seats
Removed Rear Seat?   No No No No No Yes
Changed Front Seat(s)?   No Yes Yes Yes Yes Yes
Miscellaneous
Added Short Throw Shift Kit?   No Yes Yes Yes Yes Yes
Relocated The Battery?   No Yes Yes Yes Yes Yes