Installing a cold air intake in your Dodge Caliber, for example, would cost roughly $300 for the parts and more for labor if you have it professionally installed—this would allow your engine to receive more airflow, thus improving its performance.
You could also opt to use a tuning chip to alter the mapping in your Dodge’s engine control unit (ECU) to electronically modify the engine’s operating characteristics—this would usually cost between $400 and $600, though $800 isn’t unheard of.
Once you figure out how exactly you want to tune your Dodge Caliber, it will be easier to estimate the cost.