Baseline : A baseline dyno pull consists of strapping your vehicle to the dyno, and going full-throttle while the dyno measures horsepower and torque. There is no tuning or modifications during a baseline dyno pull.
We keep all dyno graphs on file for later comparison.

Supported Vehicles List:  http://www.hptuners.com/products/vcmsuite_vehicles.php

Tuning By-The Hour : Tuning-By-The-Hour is for vehicles that don’t require a full tune such as vehicles with just an intake, headers or exhaust. If your vehicle has internal modifications such as a camshaft or cylinder heads then you will need a full tune. Supercharged, Turbocharged and Nitrous-fed vehicles require a full tune.   
*HP Tuners credits are $150 additional and only need to be purchased the first time.