| 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 |