Passat CC Remap

[pintosal]

I have a 140 Bluemotion Passat CC which I am considering getting re-mapped.

According to my insurance company, if the increase in power is 11%-20%, then the increased premium is £22 per year which seems very reasonable. Above 20% and the underwriters will not insure.

Now, all the remaps I've seen advertised claim that the power increase is from 140 to 170. Now this is over 20% increase, and would leave me uninsured.

Is it possible to specify an increase from 140 to (say) 168, which is 20% and hence insurable?

Does anyone know someone who can 'fine tune' the power? I'm in Berkshire, so I'd be looking for something local, or a mobile service.

Thanks