AEM 21-475B Cold Air Intake System in Blue Review

Gave a noticeable improvement in acceleration and power, but the mount is poorly thought out and creates a chatter at revs.

Install this on a GT 09 Legacy and the car will come to life. I already had a full turbo rear, but now the turbo can breathe on either side. Tons of turbo spool over 3000 rpm. I doubt there'll be a power or torque increase, but the power comes sooner and feels more accessible. This will fit any 05-09 Gt without an engine gauge after 500 miles. For all, there should be a major upgrade over the stock airbox.

I ordered it for my Subaru. During installation, it turned out that the connector to which the mass air flow meter is attached was welded from the back to the front. If it had been fitted the car would not have driven. Nevertheless, I give five stars. The reason is that unlike many people who play ratings, I understand that anything can happen. The thing is, the customer service was amazing. Impartial and very quick to take care of the problem. I called early in the day and was told I would…