Originally Posted by richie_s999
Vanos is a variable valve timing system, and BMWs are not a strait line car, if you want to light to light, just drop a 3.91 diff on and go nutz
Soo i've herd, the good old 3.91 differentiation never fails lol So VANOS is a valve timing system hmmmm did NOT know that. But i'm pretty sure that 3.91 is a bank breaker noo??