Not sure which 2012 GMC Terrain Air Intake Systems are right for you? We have over 254 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Stephen J from Endicott, NY said, "The Airaid Jr. kit was an easy install on my 2003 Durango. Instructions were very clear. It took about 15 minutes to install. Definetly more throttle response. One hint, use a dab of silicone grease on both ends of the Intake tube to help things slide together more easily."