UK Guide • Updated for real owners

UK Body Kit Rules: MOT + Insurance

What UK drivers need to know before fitting a kit: roadworthiness, MOT basics, insurance declaration and daily driving realities.

Quick view: Lip kits • Full kits • Widebody • Install workflow • MOT + insurance.
Car fitted with an aftermarket body kit
Make it look good—and keep it roadworthy.
Compliance

Are body kits legal in the UK?

Generally, yes. Body kits are common UK modifications. The key is that the vehicle remains roadworthy: panels must be secure, not create sharp edges, and not interfere with lighting, tyres or steering.

MOT essentials

  • No sharp or dangerous projections.
  • Panels must be securely mounted (no loose bumpers/skirts).
  • Lights, reflectors and number plates must remain visible and correctly positioned.
  • Tyres must not foul arches through the steering/suspension range.
Practical tip

If you’re running wide wheels, verify lock-to-lock clearance and suspension compression. Rubbing is the fastest way to cause damage and potential MOT issues.

Widebody kit example relevant to arch clearance and legality
Wide arches need correct wheel coverage and secure mounting.
Insurance

Declare your body kit

In the UK, a body kit is a modification and should be declared to your insurer. If a kit isn’t declared, claims can become complicated. When you call, be clear on what’s fitted (lip kit vs full kit vs widebody) and whether wheels/suspension are also modified.

  • Keep invoices and install photos.
  • List the brand/model of kit if known.
  • Declare related mods (wheels, suspension, exhaust).
Everyday driving

UK roads: what to plan for

Speed bumps, potholes, steep car parks and uneven driveway drops are the main enemies of low front lips and side skirts. If you drive daily, prioritise material durability and clearance.

A subtle kit with good clearance often looks better for longer than an extreme kit that’s constantly repaired.

Example

Secure mounting is non-negotiable

Body kit example highlighting secure fitment
MOT aside, secure mounting prevents vibration cracks and paint damage.