Modification categories

Eight categories are planned. One is published. The rest are listed so you can see what is coming — and so it is clear that their absence is our research backlog, not a finding about the law.

• Window tint

  window tint laws — published for all 51 jurisdictions, every figure cited.

• Exhaust

  exhaust and muffler laws — not researched yet. No legality claim is made either way.

• Lighting

  lighting and underglow laws — not researched yet. No legality claim is made either way.

• Suspension

  lift kit and bumper height laws — not researched yet. No legality claim is made either way.

• Wheels & tires

  wheel and tire laws — not researched yet. No legality claim is made either way.

• ECU tuning

  ECU tuning and emissions laws — not researched yet. No legality claim is made either way.

• Intake

  intake laws — not researched yet. No legality claim is made either way.

• Body & appearance

  body and appearance laws — not researched yet. No legality claim is made either way.