Just purchased a U7198 off an e-bay store, was not aware about authorized dealers. It is a new unit, but cannot get dealer to send me a receipt. I am assuming I am screwed for free future updates from Diablo.
Second, the car is a 1999 Camaro Z28. LS6 heads and intake, Ligenfelter G2-3 cam, SLP long ...

Just received my U7198. I will be using it on a 1999 Z28, LS1. The car has LS6 stock heads, LS6 intake, mild Ligenfelter cam (GT2-3), long tube headers with off road pipe, p&p throttle body, SLP MAFS, and undrive pulley. No AIR or EGR.
I am thinking the performance tune should be enough on this as ...