Question: how much does it cost to add more horsepower to a car?
Answer: Horsepower gain varies depending on the brand of the intake and the engine it is bolted to. Typical gains are in the range of 5 to 20 horsepower. Cold air intake systems generally cost around $100 to $400 and there are a number of reputable manufacturers, including AEM and Injen, who carry a variety of models.