Cruise inside the M3 Turbo Kit HPF Stage 4

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Global Tuner Grand Prix 2010 GTGP Friday Tuner / Unlimited Session In Car Footage of HPF BMW M3

There have been a lot of questions surfacing recently about the HPF/AEM engine management system that we use to tune the E46 M3 along with how power varies on a dyno with regard to wheel speed. So John and I took some time this morning to answer these questions and many more on the following...

Terry brought his M3 to us with a VF Stage 1 Supercharger kit that VF Engineering intalled earlier this year. He decided to switch to our HPF turbo system shortly thereafter. This was our 5th such swap so I documented the before and after drivability differences along with a VBox and Dyno...