Richard,
I have had the PowerChip 93/Gold for over a year now. I did not do a before/after dyno so I don't know what the gains are just for the chip. However there is a good amount of butt-o-meter feel that the car is more responsive, etc.... After I did my mods, I had the car dyno'd and air/fuel ratio measured. It showed some fine tuneing was in order. PowerChip used my dyno graphs and tweaked the software for my chip for no charge. I did have to pay for shipping my DME to/from PC. I think it was worth it. Just a satisfied user. :thumbsup:
Good Luck with your M5
I have had the PowerChip 93/Gold for over a year now. I did not do a before/after dyno so I don't know what the gains are just for the chip. However there is a good amount of butt-o-meter feel that the car is more responsive, etc.... After I did my mods, I had the car dyno'd and air/fuel ratio measured. It showed some fine tuneing was in order. PowerChip used my dyno graphs and tweaked the software for my chip for no charge. I did have to pay for shipping my DME to/from PC. I think it was worth it. Just a satisfied user. :thumbsup:
Good Luck with your M5