@kindai did you manage to sort your insurance?
Did you advise of this? I wonder if maybe that mod (like for many cars) pushed it outside the comfort zone of some insurers
Luckily for me when I was into modding cars I worked for an insurer who had a modified and high performance car specialist division
Yup, all sorted, in the end I went with admiral, the "cheaper" "specialist" insurance companies were all using zennith as the underwriter and after digging around there was nothing to justify the extra premium over admiral.
Even went back to them and they knocked it down to 900 quid, confirmed I can use my choice of repairer (within reason, I would have to provide 2 or 3 quotes) in case something happened and comes with all the bells and whistles, breakdown cover, windscreen, legal etc.
Thats with everything declared as well to admiral standards to cover the factory upgrades and also informed of new exhaust.
The negatives are that non-factory upgrades are not covered in case of an accident, so if someone went into the back end of me they would pay out for a replacement stock exhaust but not the one I am fitting, and they would only cover PPF up to where it would be supplied from factory (so front end only rather than the full bodywork I have had done).
After weighing it up, I cant justify another 900 quid to go to a "true specialist" who then also bang on all sorts of requirements of needing it garaged, needing locked gates, limited mileage etc. Sure it might go a bit smoother if the worst happened, but thats a risk I am willing to take.