If you can spare a little extra cash, a cold air intake upgrade is definitely worth it for the Audi A5.
A 2010 Audi A5 cold air intake system can cost anywhere from $300 to $400 and can increase your engine’s power by as much as 20 hp. Before you buy your upgrade, however, make sure that you’re getting the right kind of intake system for your car’s model.
For our money, we like the Injen SP Series Cold Air Intake System. It’s a little pricey at around $410, but it packs a punch and ensures longevity for your engine, as well as extra horsepower.