It's good if you fallow it..
I don't have enough time and do too much extra shit to keep up with it. Put every now and again when I need the pump I'll hit the play button.
2008 M3 Sedan + TestPipes + Tune [sold]
2014 M6 Coupe + AMS Downpipes
2012 CLS63 AMG + P30 PerformancePackage