HPF compares the effect of different sized wheels on the dyno
Well all know lighter wheels are a good thing. But just how big is the difference? Well, as a car makes more power the effect is easier to see. HPF took a Stage 4 and tested it with a wide set of 19's and then the stock 19 inch M3 wheels. The effect is magnified on a more powerful car and at one point in the graph there is an over 60 whp difference between the heavier wheels and the skinnier, lighter stock wheels. Check out the vid on the next page.