It's always a good feeling when you know you're smarter than somebody else. Don't deny your GMC Envoy mass air sensor that pleasure. From the factory, eh, it does OK. But AutoAnything has GMC Envoy mass air flow sensors that will give your stock air flow sensor a schooling.
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Because the Envoy MAF sensors are made from the OEM sensors, your stock one won't feel bad about being replaced by a peer. This Envoy mass air flow sensor is just a much smarter pupil that's been to a few more classes in delivering air flow and how that helps horsepower, torque and fuel efficiency.