[金毛毛E46M3]

We have developed both 1.9 liter and 1.8 liter BMW kits available for the Z3 and 3-series automobiles. Performance from both kits is very similar, with zero to sixty mph times in the 7.0 second range and under. While we are still in the final fuel curve calibration stage, our horsepower figures thus far are over 200 hp. Fuel mileage is essentially unchanged with our test cars achieving stock highway fuel mileage. This is attributable to our unique bypass system that will be explained later in this text.
http://downingatlanta.com/downingatlanta/da_superchargers_info_new.htm
想省錢的話
這間沿用許多原廠零件 會省下你不少錢
7秒內 0-60
200HP以上 318 SC
你可以試著聯絡看看
美國滿多論壇都會推薦318用的
不過我也是第一次看到 沒有很肯定他的數據 給你參考 =)