What is the best aftermarket performance upgrade for an already perfect LS7 2006, 2007 or 2008 C6 Z06 Corvette? This is a question that many C6 Z06 owners are plagued by. CorvetteGuys is bringing you the answer with DiabloSport Tuners. The higher the performance is prior to a Tuner means more gains after installation. Our Tuners are custom tuned to suit your C6 Z06 Corvette.