hey if anyone that has any of these cars on this list ( http://www.hptuners.com/order.php) and wish to contribute to purchacing the software contactt me and i will see how much it will cost. up to the 1st 4 cars is 499 and i have one person aside from myself willing to toss in $$. cars must be OBD2 GM's. who ever tosses in money towards this will get to use the software free of charge!