Not sure which 2003 GMC Yukon XL Mass Air Flow Sensors are right for you? We have over 316 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:
"VERY EASY INSTALL.TOO EARLY TO TELL OF ANY MPG IMPROVEMENTS.NOTICEABLE IMPROVEMENT IN OVERALL ENGINE POWER.AUTO ANYTHING HAD THE LOWEST PRICE I COULD FIND PLUS AVAILABLE COUPONS AND FREE SHIPPING!!" —Jameel H from Copiague, NY bought a Jet Power-Flow Mass Air Sensor for a 2003 GMC Yukon XL, 5.3L V8, 8th digit of VIN = Z.