Originally Posted by E30M42cab
Your best option would be the 4.10 open diff i have in my garage waiting for a buyer
He might be whoring, but he's not wrong. Putting the lower ratio diff from a 325 in your m10-powered 318i is going to make it aaaawwwwffffuuuulllyyy slooooow.
The 4.10 will help you reach highway speed the same day you enter the onramp...