Not sure which 2009 Chevy HHR 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:
"My HHR's off the line acceleration with just the Airaid Intake System was a little flat. I installed the Jet Power-Flow Mass Air Sensor and the throttle response really livened up. Throttle response from low speed to highway speeds is a lot quicker with a nice throaty roar. I've been averaging 25.5 MPG during my trips back and forth to San Diego, so I'll be interested to see if my MPG increases with the addition of the Jet Power-Flow Mass Air Sensor. I'll also be watching to see if there is a performance increase going up the mountain road between here and there.
I tell my wife(not car crazy) that all these add on's to my HHR will pay for themselves in 300,000 miles...HAHAHA" —Steven M from Tucson, AZ bought a Jet Power-Flow Mass Air Sensor for a 2009 Chevy HHR, 2.4L 4 cyl engine, 8th digit of VIN = P.