Not sure which 2004 GMC Envoy Air Intake Systems are right for you? We have over 15237 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"Love the way this CAI makes my 04 Envoy sound. Roars now (relatively speaking). Install was a little more complex than I'd like but not terrible. Had to drill a 1 1/4 inch hole for the air injection but all in all install was clean and easy. I had all the installation parts I needed in the kit.Extremely happy with my purchase and the K&N 77's performance so far." —Thomas N E from West Haven, CT bought a K&N 77 Series Metal Intake Kit for a 2004 GMC Envoy.