Not sure which 2003 Ford F-150 Throttle Body Spacers are right for you? We have over 1486 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:
"Cheap, easy to install upgrade that gets even better the more upgrades you have. Exaust when on the weekend after and everything sounds really nice. Noticable pickup in the lower end and midrange throttle response. Can't wait for the cold air intacke to top it all off" —Cory B from Moscow, IA bought a Jet Power-Flow TBI Spacer for a 2003 Ford F-150.
"good overall. helps. with low end power. towing and stop light starts are noticeable improvements. The claim to improved gas mileage is not happening. This is the third unit in three different vehicles with the same results, large low end torque improvements with gas mileage staying the same. Worth the money and time." —Mike S from Sparks, NV bought an Airaid PowerAid Throttle Body Spacer for a 2003 Ford F-150.
"I have 03 f150 with the 4.6 and on 37in tire it was a little sluggish off the start and after I did the tb spacer it's has no slugness to it I would buy one for any of my future trucks also have a superchip program and cold air intake would also recomind that for any truck" —Timothy B from Palatka, FL bought a Jet Power-Flow TBI Spacer for a 2003 Ford F-150, 4.6L V8, 8th digit of VIN = W.