Right so after a suggestion from a friend saying he had used this chip in his fiesta 1.6 Zetec and noticed a decent improvement in low end torque and not such a larger power drop off towards the end of the rpm range. Along with a few minor supporting mods. He said it was the best £60 he put into the car so far. That said I gave them a call n they said they would work well for the 4E-FE engines. Just wondering if any one else has tried these out or not? Would be good to here your feedback on such item. Regards Liam