Debating on pulling the trigger on 2012 c63 coupe
I wanted the p31 for the internals and extra hp and because it was just a detuned version of a edition 507.
You could just get a tune and get more power. For LSD, I heard some say the OEM one sucked and they replaced it with an aftermarket one.
I'm also going the aftermarket route with my p31.
I can certainly tell you that the standard engine internals allow it to rev very freely and responsively as it is so IMO this is not a deal breaker at all. The extra power that the P31 map gives is great but, a remap obliterates this to the point that a lot of P31 guys actually remap theirs anyway.
As for the LSD, I have this and I can't tell the difference on the street much at all between it and a non-LSD car. It does come to life though when you want to kick the *** out but the non-LSD car does this with ease anyway and you can still drift it. As for hooking up in a straight line, both cars will write number 11's and in the dry there's not much difference, although I will say that in the wet the LSD helps but, I don't tend to nail it then anyway.
I do wonder if the non-LSD cars have an eLSD that is brake controlled. Can anyone confirm?
Anyway, again, is a mechanical LSD a MUST have for a street driver? Probably not but with Quaife's and Wavetrac's so cheap in the grand scheme of things I'd just head there. Besides, ATBD's tend to be better than stock anyway and it's quite a nice 'mod' to have if you plan on ramping up the HP a lot. With just a tune I wouldn't worry much though.
Last edited by Cozy; Oct 24, 2014 at 09:59 AM.







