Did a search but couldn't find a thread on it specifically.

I am getting upgrades done to my car. Just found out from my insurer that as soon as an upgraded turbo goes on the car my insurance is null & void. In this case, vf34 instead of the tdo4.
You can put upgrades on your car, but turbo isn't one of them.
Car is going over the pitts reguardless after work finished on her.
Will have to change insurer. Recommendations appreciated.
I have a clean driving record too.
Cheers
Nat