RS Tuning Ltd are one of north's leading performance tuners, offering chip tuning/remapping for most ECU's on the market, including the old fashioned chip changes. We also have rolling road facilities and a huge range of products aimed at getting the most from your vehicle. Based in Leeds, West Yorkshire, our aim is to provide a one stop shop for all your tuning needs and requirements, offering many exciting new products and the latest tuning facilities. Give us a call and find out what RS Tuning can offer you. Remaps are available for most of the makes listed on our products page makes but if you can't find your vehicle then please don't hesitate to contact us. ECU Remapping Specialists. Custom tuning for most makes and models availible. Dyno Dynamics 4WD Rolling Road