G-Power Supercharges the BMW M3 E46 and Z4M to 450HP

var addthis_pub="mastersairabG-Power Supercharges the BMW M3 E46 and Z4M to 450HP .fullpost{display:inline;} This time, BMW 'super tuner' G-Power has turned its attention on two previous generation 'M' sports cars, the M3 E46 and the Z4M with the presentation of a somewhat tamer performance package than what we're used to from the German company. At the heart of