So we have a good doctor customer & we just chipped his X5 & M3. He wanted the M3 dyno'd before & after. We used Stars dyno in Nandi drive as it's gaining a reputation as a well respected institution.
We fitted an X-pipe of our design which removes all the catts & we flashed the car with a map to take advantage of this. We have done 8 M3's so far with this setup & they ALL gain around 40hp on the wheels. The graph below isof the 1st run on the dyno & the last. The operator actually printed the wrong runs. We wanted the best stock run vs the best modded run. 288hp was the 1st run stock with a cold drivetrain & dirty filter. We cleaned the filter, cleared the faults, warmed up the drivetrain & got it to make 304hp stock. So the gain is actually 40 wheel hp. I will get a new prinout with the best stock run as the baseline.
We fitted an X-pipe of our design which removes all the catts & we flashed the car with a map to take advantage of this. We have done 8 M3's so far with this setup & they ALL gain around 40hp on the wheels. The graph below isof the 1st run on the dyno & the last. The operator actually printed the wrong runs. We wanted the best stock run vs the best modded run. 288hp was the 1st run stock with a cold drivetrain & dirty filter. We cleaned the filter, cleared the faults, warmed up the drivetrain & got it to make 304hp stock. So the gain is actually 40 wheel hp. I will get a new prinout with the best stock run as the baseline.
