I'm a regular on 306oc, having had 5 of the things, my current ones being a stage 3 HDi estate, and a completely stripped XUD9 track car (currently in progress)
I've just acquired a 406, HDi 90 in china blue, as a daily hack/towbus. My plans are initially to fix all the broken bits, then fit a FMIC off a 110 HDi (fits straight on, no messing), then either remap to a nice round 150, or M-TDi conversion so I can run veg oil
