glennhl

I bought a 2011 C63. I do not suspect that it has an aftermarket tune but then again, how the heck would I know? Is there any way to tell if you have an aftermarket tune? With my old car I used HPtuners and I could download the tune to tell if it was stock.

Also, I have 6 months left on the warranty. If I take it to a dealer will they load in any updates for the engine and/or tranny software?

Thanks.


Ps. Autocorrect got me. Title should read ID, not I'd.

CarHopper

Get on a dyno and see what it puts down. Or drive a different c63

crazy1eye

Find a deserted stretch of hwy & see if the speed limiter kicks in

glennhl

It did cross my mind!