I have read this and other threads on the subject and am still not sure on the advice. I have a Duratec Plus 4 and am attracted to the idea of a re-map but do not have the fancy manifolds, is it worthwhile going ahead.
My plus 4 Duratec has a Williams manifold, exhaust and remap. I had occasion to put it on a rolling road (emissions issue) and power had increased to 155 at flywheel and torque to 148@4800rpm.
You certainly won't get the results with a Duratec that you will with the GDI.
