certainly did Steve
yeah the stock ecu is definitely a setback with boost - rich & retard really sucks. power wasn't being distributed nicely through the rev range - anywhere from 3500 - 6000 rpm was very flat, but as soon as you passed 6000, this big hit of power would chuck you back in your seat.
however -
when i added my fmic, i took the car for a drive around the block with the front bar and reo off -it was boosting almost 1 bar! and this was with the standard solenoid, and standard ecu - it flew! but as soon as i put the reo and front bar back on, boost dropped back to 9psi
Im runing a remapped ecu now, good bang for buck, and its roadworthy