This sounds like reasonable value for $1,495:
VF V8 310 Power Package « Horsepower Factory
VF310
VF V8 310 Power Package
Flywheel Power: L77=310kw LS3=345kw
Price: $1,495
Model Compatibility: VF V8, HSV Gen-F
Installation Time: 1 Day
The new VF 310 upgrade starts with our trained technician fitting an over the radiator cold air intake with a re-usable air filter to increase the engines breathing capabilities, we then custom tune your vehicle’s ECU on the dyno utilizing the latest ECU tuning software to maximize power and fuel efficiency.
We complete the upgrade process by testing your vehicle on the road to make final adjustments, optimizing your vehicles performance and driveability. This is all completed in a day and at the end of this upgrade you will provided with a dyno graph detailing the power & torque increase of your vehicle.
Package Includes
1 x ECU – reprogram
1 x HPF over the radiator cold air intake
1 x High flow reusable air filter
1 x Intake Air Temp patch harness
1 x Intake Air Temp sensor
1 x Before and after dyno graph
1 x All labour to fit / tune / test