ive been told that I can spend $2,000 on a great exhaust and a few other things and only gain about 6hp because Mazda already tuned the car to almost peak performance. Other than adding a turbo or super charger, how can I increase my car's hp?
I am pretty sure that an air filter will not increase the horsepower by 10. Even an aftermarket one.
I am pretty sure that an air filter will not increase the horsepower by 10. Even an aftermarket one.