Quote:
Originally Posted by DaveC113
The regular diff tune is less predictable, the tighter the corner the less predictable. It can sometimes not open enough on turn-in, causing more understeer than you migh anticipate, and it'll also not lock fast enough on corner exit. The GMPP tune solved these issues, it's consistent and locks much faster on-throttle which allows for better rotation, and you know exactly what it's going to do every time. The OEM diff doesn't lock enough in some situations, my friend's non-1LE spins up one wheel in some circumstances.
The GMPP diff tune does require some adjustment to the handling balance though. I can't imagine anyone preferring the OEM ediff tune over the GMPP tune, it obviously worked well for GM's team, but to each his own.
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Stock tune probably also contributes to my lazier turn in.
Dave, on a side note, remember when we talked about the cost of the tune? A guy up in NoCal just got it done. Cost $730! Gm charged 280 but dealer charged 450 for 1.5 hours. Didn’t think they were to charge extra, customer beware I guess