Supercharger: Can be installed by anyone with 10 fingers and more than 6 brain cells, retain factory weight distribution and handling, still acts like a high-revving 4 cylinder, 30+ mpg, no need to remove engine, no other upgrades needed, BEATS STOCK M3s.
Engine swap: Should be installed by a professional $$$, multiple upgrades needed (suspension, brakes, radiator, etc...), front heavy, rear-end can't handle the power, costs about twice what the supercharger does for about the same amount of power, $$$$ invested in a car that doesn't hold value like other BMWs. __________________ 
'99 Dinan M3 |