How can I prevent my BMW 330ci's bumpers being stolen?

How can I stop the bumpers of my standard BMW 330ci from being stolen? I was thinking of putting a note in the window "parts marked". I notice a lot of these bumpers on eBay.

Asked on 12 May 2011 by MA, via email

Answered by Honest John
There is obviously a market for CI front and rear valences. You could try security by hidden microdots containing a code unique to the car. It costs £250 to have applied by www.mighty-dot.com and is expensive, but cheaper than new bumpers.
Tags: theft bodywork
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