Advice for buying a C63
Hey guys! I'm looking to buy a used c63, most likely a 2010 with low miles, and I had a some questions about the optional performance package and limited slip diff. Concerning the pp, if I got one without it would a ecu tune from someone like kleeman, for example, make up for the lower hp? What else would I be missing out on without the pp? Also, if it didn't come with the lsd, how much would it cost, approx., to have one put on? Also, what are the advantages to having one? Thanks for the help.