That’s such a bummer your car hasn’t been performing as you hoped. Fortunately, a tune may give you that extra boost you’re needing in your vehicle.
For a general stock car (i.e. no additional performance parts), a tune will boost your hp by 10 to 15 percent. What’s more is that if you’ve added performance parts to your vehicle such as cold air intake, exhaust, or turbo, the hp boost you gain from tuning may be as high as 50 percent more!