Originally Posted by theburns1

people say not tuneable but theres everything out there like cams and verniers, throttle bodys, manifolds, induction kits, gasflow the head. you'd have to spend over 1k on a zetec to get 150 bhp, and i've had 3 rs2000, i've got 2 mates thats had 1 a piece and not 1 problem, and i've never heard of the head cracking. maybe put some water in and this wouldnt happen.