At Stage 1 Customs will make your 2011-2018 Mercedes B Class one of a kind, keep it preforming at its peak, or turn it into a high-powered beast? Our quality selection of premium accessories and parts ticks all the boxes. Quality is at the heart of everything we do at Stage 1 Customs, so whatever your project, our brand name products and qualified experts will ensure success. Class. Luxury. Durability. We have it all, and we're always here with everything you need to keep your 2011-2018 Mercedes B Class in tip top shape, inside and out.