Vauxhall Corsa (S Reg), Insurance

[Tim1990]

If I were to black out the windows would I need to declare on insurance? In addition, do things like changing old style windows to electric windows and changing interior matter too? Just purchased a car which isn't up to scratch so want to slightly modify but nothing performance wise

[Jez0099]

Blacking out the glass I think your meant to but can't imagen many people do but the windows don't see how they would effect the insurance