Insurance companies really dont look into this sh*t guys....why bother mentioning it?
Tuners on the forum have had insurance companies approach them to check if ECU's have been tampered with
It does happen and your better to be safe than sorry and potentially get a claim refused.
It's actually been cheaper to insure a modified car for me using the right insurer.
Everyone is having ECU's mapped these days, it's big business and insurance companies a) aren't daft, and b) will check everything if it means they can avoid paying out.
Well covered subject on this forum