YES! The factory tuning is geared NOT for the performance enthusiast. Power is compromised to take other factors into consideration including bad gas, and non-spirited drivers! Even a factory vehicle can benefit from better throttle response, automatic transmission shift points and firmness, and increased overall power!
Vehicles with modifications should have their tune optimized for air fuel and spark. Failure to do so can result in loss of power or even worse; engine damage! Some newer vehicles require a tune even for small bolt-on modifications in order for the car to run!
There's no vehicle that can't benefit from a true custom dyno-tune!


