Top 5 Legal Mods for 4WDs in Victoria (And What to Avoid)

Modifying your 4WD can enhance its capabilities, but it’s crucial to stay within legal boundaries to avoid penalties and ensure safety.

Legal Modifications:

1. Suspension Lifts: Up to 50mm increase is generally acceptable without certification.

2. Tyre Size: Increasing tyre diameter by up to 50mm is typically allowed. 

3. Bullbars: Must comply with VSI 1 requirements, ensuring pedestrian safety and airbag compatibility.

4. Lighting: Additional lights are permitted but must be correctly positioned and switched. 

5. Tow Bars: Installation is allowed provided they meet VSI 24 standards.

Modifications to Avoid Without Certification:

• Body Lifts Over 50mm: Require engineering approval. 

• Wheel Spacers: Generally prohibited due to safety concerns.

• Excessive Track Width Increases: Can affect vehicle stability and are often illegal.

Always consult the VicRoads guidelines or a certified engineer before undertaking significant modifications.