Not sure which 2011 GMC Sierra 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:
"Installation was as advertised. Only a few basic tools required. Instructions were average. It took me about an hour and I'm a bit anal. By that I mean that I wanted the clamps to line up and the whole assembly to be perfectly aligned with the center line of the car.Not as much increase in intake sound as I would have liked but I can feel the difference in acceleration. Too soon to tell if it effects mpg but honestly, I don't care. Price is a bit high for the look of the air bridge but I'm very happy to have it and feel confident in the K&N Brand.All-in-all, I give it an A." —Harry D from Huntington Beach, CA bought a K&N 63 Series AirCharger High-Flow Intake Kit for a 2011 GMC Sierra.
"It shipped fast, installation was a breeze & the throttle response is great ! It gave my 5.3 a little more juice" —Jason G from Beeville, TX bought an Airaid PowerAid Throttle Body Spacer for a 2011 GMC Sierra.
"Works Just Like I hoped. Does not increase noise, unless I put my foot in it, then it sounds great. Haven't noticed much horsepower, but I just bought this tuck and went from over 400hp to 300, so nothing is going to help my perception there. When the weather was warm it appeared I was going to get 2.5+ mpg, but after 1 day, it has been very cold the last 2 weeks, and its producing 1.2 more mpg. I'm interested to see what I get when its warmer. I've noticed all my trucks do better when temps are above freezing.Auto Anything service and delivery was awesome! And yes the instructions are terrible, but nothing the average joe that can turn a wrench can't figure out." —Mark K from Pocatello , ID bought a K&N 63 Series AirCharger High-Flow Intake Kit for a 2011 GMC Sierra.
"if youre thinking about getting one for your truck or suv don't think just jump at it yes its pricey but well worth it! the intake was easy to install, and autoanything made easy to get as well! the sound of the engine is awesome!" —Max G from Las Cruces, NM bought a Banks Ram-Air Intake for a 2011 GMC Sierra.
"have not driven truck enough to see how much it is going to help." —Jerry S from Salisbury, NC bought an aFe Cold Air Intakes for a 2011 GMC Sierra.
"the installation was pretty good, i didn't drill any holes like recommended. the HOT radiator hose rides right against the intake tube ( i don't know how its getting cold air like that) but i did notice a little bit more power and little bit better gas millage ( 12.6 mpg vs 12.7 mpg). my truck has 35 inch tires if you wondering why my mpg are so low. my truck can now go 65 mph now :)" —Zachary Y from Punta Gorda, FL bought a K&N 63 Series AirCharger High-Flow Intake Kit for a 2011 GMC Sierra.
"Quality product, beats K&N hands down from a quality aspect as well as appearance and functionality." —Jared W from Dallas, GA bought a Banks Ram-Air Intake for a 2011 GMC Sierra.
"The hardest part was getting the breather tube off. Instructions could have been a little clearer to illustrate this step. Looks great. Replaces stock which is much bigger due to the resonators used to quiet airflow. Once installed, it is a bit louder. Performance gains are minimum but there due to a recent study done by blackbear performance, but I can not account for changes in MPG's. Overall, I recommend" —Sanjeev D from Miami, FL bought an Airaid Modular Intake Tube for a 2011 GMC Sierra.
"Nice looking sounds good" —Stephen M from , bought a K&N 63 Series AirCharger High-Flow Intake Kit for a 2011 GMC Sierra.
"The aFe intake I purchased was really easy to install even as a novice mechanic. The instructions weren't perfect, but with a little common sense applied, I was able to get it installed in about 20 minutes with just common tools on my 2011 Sierra 2500. Overall, it's a good product. It looks good installed, and my truck sounds a little throatier at high end RPM ranges. I installed this with a performance programmer, so it's hard to say if it improved the gas mileage or not, but it definitely didn't make it any worse." —William G from Beaufort, SC bought an aFe Cold Air Intakes for a 2011 GMC Sierra.
"installed on my wifes 2011 gmc sierra in about 1hr. she drove the truck the next day and said see could tell that her truck ran better. delivery was very good" —Norman H from Tamarac, FL bought a K&N 63 Series AirCharger High-Flow Intake Kit for a 2011 GMC Sierra.