handheld or mail order tune?????
i used the vinci tuner on both of my cars. here's a writeup i did some time ago
http://www.stealthram.com/vhptuner.htm
We can pick you up 15-20 HP, firm up your shifts, get rid of the torque management, lower the fan temps and even pick you up some part throttle mileage as well. We do have exchange PCM's so you don't have to have any downtime. Typically we are seeing 3-4 tenths in 1/4 mile gains as well.



