Sorry boys you must have something wrong coz i bought a fse one and fitted it my self n it amazing!!! u sure you haven't fitted the pipes wrong coz i know if you do that its like its not getting enough fuel. I have a 1.6 zetec 3dr with induction kit, stainless steel sports manifold, decat, stainless back box and my boost valve. if you are still going ahead with it let me know and i will give u pics.