Our performance tuning for the 2006-2007 Pontiac Solstice 2.4L (automatic not supported) typically yields 10-14hp and 1-2mpg, as well as better part throttle response and driveability. We can also account for any modifications you might have! After placing your order, please fill out an order sheet for your vehicle (here). What program should I use and what is refundable? Click here!