Not sure which 2008 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:
"No comment!!!!!!!!!!!!!It is just soooooo powerfull." —Khaled A from Springfield Gardens, NY bought a Volant Cold Air Intakes for a 2008 GMC Sierra.
"Installed it with a K&N 77 Cold Air Intake and a Jet Stage 1 Chip and saw incredible jumps in power and gas efficiency. Will recomend to everyone, especially with todays gas prices." —Jorge R from Miramar, FL bought a Jet Power-Flow Mass Air Sensor for a 2008 GMC Sierra.
"ONE OF THE BEST PRODUCTS THAT I BOUGHTEN FROM AUTOANYTHING.COM FOR MY GMC AND CADILLAC AND I WOULD CONTINUE BUYING FROM THIER AND WOULD RECOMEND ALL MY FRIENDS TO THIS WEB SITE." —Juan V from Edinburg, TX bought an Airaid PowerAid Throttle Body Spacer for a 2008 GMC Sierra.
"easy to install cause I watched another brand put in the same truck. The instructions? Must have missed somethin in the expanded parts picture. It doesn't tell you to use some of the existing hardware. Over all, it did just what the doctor ordered. Go fast or save gas." —David K from Livermore, CA bought a Volant Cold Air Intakes for a 2008 GMC Sierra.
"Installed with little effort. Very nice product." —Stephen S from Houston, TX bought a Volant Cold Air Intakes for a 2008 GMC Sierra.
"Very simple to install, taking only 30 minutes." —Adam T from La Place, LA bought an AEM Brute Force Air Intakes for a 2008 GMC Sierra.
"Better throttle response at take-off from red lights as well as at speed.A good start to improving the over-all performance of my truck.The only negative thing I can report is that the box the intake kit came in is not big enough to put all of the unnecessary stuff it replaces." —Dennis T from Natchez, MS bought a K&N 63 Series AirCharger High-Flow Intake Kit for a 2008 GMC Sierra.
"I ordered and installed the complete Airaid intake system plus the addition of the Poweraid throttle body spacer and there is a noticeable difference in power. I have not been able to get to accurate of a read on the gas mileage setting as with winter here the vehicle is warming up more than anything else. The installation was easy and took about 45 minutes with thoroughly reading the instructions (the instructions provided were great as these were definitely vehicle specific and were not confusing at all)" —Thomas M from Highland, MI bought an Airaid Intake System for a 2008 GMC Sierra.
"The directions are good,just follow them.It only took me 45min. to do the job. I went one step farther and sealed all the small spaces on the air box. I don't know about the gas mileage yet I got 17 mpg in town with my 5.3 GMC. I do know that the out of the hole power is a lot better,this truck wgheis almost 6000 ibs. Plus it looks GREAT !!!!!! Bill Fla." —William S from Deland, FL bought an Airaid Intake System for a 2008 GMC Sierra.
"The direstions for the installation was very good, and somewhat easy to follow, but the pictures need to be a little more clearer. The instruction sheet that I had, wasblurry, and I need to look at the pictures several times for reference during installation." —Gregory D from Napoleonville, LA bought a K&N 63 Series AirCharger High-Flow Intake Kit for a 2008 GMC Sierra.
"I was a little skept about the intake when i purchase itbut now that i have it on it reaaly sounda good and has improve throttle response have had a chance to check gasmileage yet, is worth the price." —Rodney C from White Sulphur Springs, WV bought an aFe Cold Air Intakes for a 2008 GMC Sierra.