i used a hair dryer to heat up the silicon. taking the glass of was tricky and i even broke a part of the clips. i used normal black spray paint. u dont have to take of the whole bumper to take the lights off. just look around for the screws of the lights 2 at the top and one near the tyres behind the bumper.i sealed it with the stock silicon by heating it again. if u arent sure about resealing it use silicon available in the market any brand would do i will ask my mechanic the name of the silicon he gave me.