Originally Posted by evilstib
Makes me just want to buy a 1M
Save the dough on the 1M, I paid $2200 for my diff with installation, and I had the car back that same afternoon. I am fortunate in that I only live 3 miles from the Diffsonline shop and he carries the wavetrac and Quaife's pre-installed into other housings. I got damn lucky with my Diff.