Mind you they dont go bad as standard (2.0 tdci)a more realistic performance enhancing mod for my c-max would be to change the budget tyres for some top brand tyres with stronger sidewalls
the Goodyear EXCELLENCE would be good and would sharpen up high speed handling a treat[img]smileys/smiley17.gif[/img]
never mind those posh soft compound tyres would never last as long as my hard compound budget tyres
or more down to earth for occasional good times BP rocket derv
the company van i drive we have to use supermarket fuel and i dont care what anyone says it sucks ,i reccon the connect van loses around 10hp compared to branded fuel .