ID TELL THEM TO FUUUUUK OFF!!! the police can go buy their own rolling road, they have enough cash! and just to point out, that this post may put people off coming to your garage for mods.
I didnt declare 1 of my mods on my last car! even had a ed 30 engine put in, simply because i didnt want to spend 10k per year on insurence.
que lots of negative comments..... dont care, i know LOTS of people on here who do the same as me! youd be supprised. im only saying this now because i have an r32, anybody who knows anything about cars knows there's no point in a remap!!
1) If the Police buy their own dyno then it will be done with OUR (including yours) tax money. (You do pay tax, right...?) Sometimes outsourcing to a third party is more cost effective. Whether there's someone willing to take up the work is an entirely separate matter.
2) As I understand it, if you do not declare modifications, then the vehicle is likely to be classed as not insured, and possibly even classed as incorrectly registered (IIRC). Furthermore, I (and others) have to pay more for our insurance because people like you do not declare (it drives everyone's premium up). I don't like paying insurance - hell, I don't even like insurance companies, or the law that requires insurance* - but this nevertheless is the way things work.
*I dislike the law that insists on insurance because it is effectively a government-sponsored cartel with a licensed monopoly. It's a good business to be in, if your customers
have to purchase your service or be prosecuted. Pricing is effectively set by a handful of reinsurers - hence the cartel. They do some sums and arrive at some rather arbitrary figures which dictate what the rest of the market can charge you - and of course, none of the other reinsurers will do anything to encourage price-cutting. By keeping things complicated, no one can effectively argue against said practice. But I digress.