Review on AEM 21-678C Gun Metal Cold Air Intake System Review by Ryan Judy

This cold air intake system is perfect for my needs. I was originally interested in a powder coated hidden filter/heat shield but found that its simplicity made it worth the price per bolt and reportedly adds around 16-20 horsepower. at 4100 rpm (depending on your tune)) In general, I like the appearance of the device, it is very aesthetic. The installation went pretty mediocre. I passionately hate the rubber grommet material used to insulate the airbox/intake module. It is not flexible and does not fit well. So far this is the only complaint I have.