What are somethings that will help a car go faster?

What are somethings that will help a car go faster?
There are a number of things you can do, First it depends on are you wanting more acceleration or are you wanting to reach a higher top speed? for acceleration a good first step is put in a cool air intake and change you spark plugs from copper core to the pulse plugs. Both of these are pretty pricey though. For a higher top speed you can get bigger tires than you have and at the same RPM you will be traveling faster but this is hard on your vehicle because more torque is needed. This will also cause your speedometer to read incorrectly.