I went Zetec after looking into the RS2000 route. I was put off it by the lack of tunability for the RS engine without spending major ££££££££. Zetecs are easier to tune and dont cost the earth, parts are cheaper and thhey are easier to source (No RS tax!!) Also, theres a bit more to the RS install as far as im told where as the Zetec is straight forward drop in really. Only my opinion, its personal choice at the end of the day.