Active Autowerke | 550/650 N62 V8 performance software upgrade revision results in +23 wheel horsepower, dyno inside
We have just completed our final software revision for the N62 engine. We have made great improvements to our previous tune thanks to BMW's Valvetronic technology which allows us to open up more power from the stock engine. The 650 we tested had 22 inch heavy wheels installed but as you can see from the dyno posted below we made some great power in the upper rpm range. We will need to get another car in here with stock wheels to get more realistic numbers from a stock car.
However, as you can all see the power gains are from the same car on the same dyno before and after shows our SW tune works great, plus the throttle response and drive ability will be very evident for part throttle city driving .
Please compare these peak gains of 23 wheel horsepower after the software revision to the gains with the previous software version: http://www.bimmerboost.com/content.p...oftware-499-00