Increase your low to mid-range power and torque, plus boost fuel economy with the Airaid PowerAid Throttle Body Spacer. Built from aircraft-grade aluminum and featuring the revolutionary Helix Bore design. Straightforward installation with standard tools. 50-state CARB legal. Lifetime Warranty.
Harness the power of Helix with the Taylor Cable Helix Power Tower PLUS Throttle Body Spacer. Dyno and flow-bench tested to deliver massive mid-range power and torque gains, plus a boost in MPGs. T-6061 aircraft aluminum. 50-state CARB legal. 30-day warranty.
Finally, a throttle body spacer that doesn't whistle while it works. The JET Performance Power-Flo throttle body spacers’ innovative bore design gives you gains in the mid-range power band and increases overall fuel economy without the annoying whistle. 50-state CARB legal. 1-year warranty.
Boost torque and horsepower with aFe Silver Bullet Throttle Body Spacers. These throttle body spacers pump up the power without annoying wind noise. Combination serrated/helix design results in better fuel burn. Lifetime Warranty.
Ready to raise your fuel economy by 1 – 3 MPGs while throttling up your low-end torque? Just bolt on a custom EconoAid Throttle Body Booster. This ingenious intake booster helps improve combustion by shaping the air before it reaches your cylinders. Lifetime Warranty.
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.