hope u ordered an inclosed induction kit, and not a 57i zetecs run very hot and Ur'll suck in hot air. any way tuning wise, inclosed induction kit (bmc, power engineering). 4-2-1 manifold decat (milltek, piper), full exhaust system (milltek, scorpion,piper) then cam's (Kent, piper, Newman, cat) and a remap.(from which ever tuning company you like)