I have been reading alot about airflow sensors and throttle body spacers, which are supposed to increase airflow, resulting in better fuel economy and so on. I was wondering if anybody here has installed any of these into their vehicle and if they were happy with the results?

 

well what the aftermarket sensor does is it tricks your computer in to spraying more fuel in to your intake telling it more air is coming in than really is have have installed a few for people and with diff results for diff engines. for the most part people are happy with them just depends on the person. as for better gas milage im not so sure about as i said it is spraying more fuel in. well hope this will help you

 

My friend has a 2000 f-150 with a 5.4 liter engines and he has the spacer and the sensor and he not only gets the horsepower but he also gets a little better gas mileage.

 

I heard spacers cause an annoying howling sound.