no
It's personal preference. I'd say yes, as it's a motorsport look and I rock that.
Contact KW and see how much they'll pay you for the advertising space you've so kindly rented them! I know what their answer will be...
Try it. Put them on and if you feel like a tit, take them off. Simple really.
Best check if your insurance company will accept stickers - you know they can be awkward if anything is different to the build spec!