TBH it's been proven on the rsoc that the phase 1/2 is balls tbh - it only came about as Evo thought it was the easiest (but wrong) way of differentiating an early build car from a late build car when buying used, however there are loads of early registered FRS (call them Phase 1 if you like) that over the first 3 years of their life have been retrofitted with the so called later "Phase2" items - things like the pink throttle grommet, stitched seats, ae/af engine maps, as they could all be done by Ford under service & warranty