Yep I have the FSE, it helped with flatspots before I got a Unichip.

Does have a drawback though. Mine tends to let the fuel pressure creep up. I set mine for 3.1 bar (Standard is 2.4) but after a month or so it slowly creeps up to 6 bar which causes the injectors to dribble at idle and pushes emmisions right up.

Now have the AEM Focus pipe fitted (Pig of a job, not a direct bolt on)

Mad Mole
Visit Mad Moles Mondeo Madness
2L Zetec, Cams, Stage 2 head, Valve work, Powerflow, Unichip, AEM Ram, K&N, Ecotek, 75mm Lower etc.
192 BHP, Faster than a speeding Duratec!