It's fantastic, you can not ask for a better hop-up for sheer tourque and power for pulling, and off-roading! I mean with the supercharger you will be out pulling anything short of a desiel!! You can chain it to a 5.7 liter Suburban put both in low range and you can pull him all over the place! I mean the torque is RIGHT there, as soon as you dip into the gas it is on, big time! The charger is ALWAYS running so gas mileage is going to be hurt no matter what. WELL worth it for my application! Right now I am in the process for trying to find a wrecked Tundra V6 in stick so I can put a five speed manual in mine. Hanging the clutch petal is going to be a B$%#& thought!