Lowering in Illinois
Illinois requires bumpers on vehicles up to 9,000 lb GVWR and caps their height (22 inches for first-division vehicles), but sets no lowering minimum.
Verified against primary sources · August 2026
What the law says
625 ILCS 5/12-608 requires bumpers on vehicles at or under 9,000 lb GVWR and RVs, caps maximum heights by class (22 inches for first-division vehicles, tiering 24/26, 27/29, 28/30), and requires replacement bumpers at least 4.5 inches tall. No minimum height applies to lowering.
Specific Limits
- Bumper max cars
- 22 in
- Lowering minimum
- none
- Bumper min height
- 4.5 in tall replacement bumpers
Frequently Asked Questions
Are lowering legal in Illinois?
What are the exact lowering limits in Illinois?
Street-legal lowering picks
Gear that helps you mod without a ticket in Illinois.
A conservative drop that keeps required ground clearance.
Shop on AmazonDial your height back up if an inspection says you're too low.
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