I've driven both a standard car with no LSD and mine with Eurocharged map and Quaife diff. Mine without doubt puts the power down better. I rarely get the traction light. However I have also fitted decent tyres which helps.
Have said that the Hankooks that came off only have circa 2.5mm left on them and again rarely saw the light unless it was wet.
Quaiffe will be on my list…if I buy a C63 AMG….the remap also I think
