If your Nissan is acting up with rough idle, hesitation, or a check engine light, your mass air flow sensor might be the culprit. This ACROPIX replacement is designed to fit a bunch of Nissan models - 350Z (2003-2007), Altima (2004-2007), Maxima (2004-2008), Murano (2003-2007), Pathfinder (2003-2004), Quest (2004-2009), and Sentra (2004-2006). It replaces OEM number 22680-CA000 and has the standard 5-pin connector you'd expect. The MAF sensor is crucial because it measures the air coming into your engine so the computer can calculate the right fuel mixture. When these sensors get dirty or fail, you can experience all sorts of drivability issues and decreased fuel economy. Installation is pretty straightforward - it's located right by the air intake box, usually just a couple of screws and an electrical connector. The black plastic and metal construction feels durable, and at about 5 inches in each dimension, it's the same size as your original. This is an aftermarket part, not OEM, but the quality seems solid for the price. If you're dealing with symptoms like poor acceleration, rough running, or that pesky check engine light related to air flow issues, replacing your MAF sensor is often the solution. Just make sure to also check your air filter and intake system for any issues that might have contaminated your original sensor. Having a properly functioning MAF sensor makes a huge difference in how smoothly your Nissan runs and can even improve your gas mileage.