aFe 18-21 Ford Mustang GT 5.0L 85mm Billet Throttle Body - 46-39101

Not only does our design out flow the OE by 17% at WOT (measured at 4” H2O restriction), the air flow in the 80% range of throttle blade opening is also dramatically improved, offering much smoother power delivery during spirited driving in the upper RPM range. This is achieved through careful engineering, billet construction and precision machining, allowing for smoother transitions, a thin leading edge and an aerodynamically improved design. The result of all this is more fully formed air passing through the throttle body into the intake manifold. Think of the wings of an airplane and how effortlessly the air passes around them. To address any performance concerns such as rough idling or check engine lights (CEL’s), aFe chose to use OEM electronics and gearing mechanism to ensure proper function and connectivity. Again, the 85mm throttle body does not require any custom tuning: it works well right out of the box. This is one of the simpler bolt on upgrades you can do to your car or truck. Simply loosen or remove the air intake tube and there are only 4 bolts and one electrical connector to remove. Install the BTB with the supplied hardware, re-attach your intake tube and that’s about it.

This Part Fits:

Year	Make	Model	Submodel
2018-2020	Ford	F-150	King Ranch
2018-2020	Ford	F-150	Lariat
2018-2020	Ford	F-150	Platinum
2018-2020	Ford	F-150	SSV
2018-2020	Ford	F-150	XL
2018-2020	Ford	F-150	XLT
2020-2023	Ford	F-250 Super Duty	King Ranch
2020-2023	Ford	F-250 Super Duty	Lariat
2020-2023	Ford	F-250 Super Duty	Platinum
2020-2023	Ford	F-250 Super Duty	XL
2020-2023	Ford	F-250 Super Duty	XLT
2020-2023	Ford	F-350 Super Duty	King Ranch
2020-2023	Ford	F-350 Super Duty	Lariat
2020-2023	Ford	F-350 Super Duty	Platinum
2020-2023	Ford	F-350 Super Duty	XL
2020-2023	Ford	F-350 Super Duty	XLT
2019-2020	Ford	Mustang	Bullitt
2018-2025	Ford	Mustang	GT
2018-2021	Ford	Mustang	GT Premium
2021	Ford	Mustang	Mach 1

Please note image may vary from product. Also, some items are special order. If delivery time is a concern, please contact us prior to purchase. ​

AFE (Advanced Flow Engineering) is a leading name in the world of high-performance automotive parts, trusted by enthusiasts who demand nothing but the best for their vehicles. Specializing in cutting-edge cold air intake systems, high-flow exhaust systems, premium performance filters, and more, AFE is all about unlocking your vehicle's true potential.

Designed for drivers who crave power, efficiency, and performance, AFE products are engineered to maximize airflow, boosting horsepower, torque, and fuel economy. Whether you're upgrading your truck, SUV, or performance car, AFE offers precision-engineered solutions that deliver impressive gains under the hood.

Crafted from top-tier materials like high-quality aluminum, stainless steel, and advanced filtration media, AFE parts are built for durability, performance, and style. With a commitment to innovation and excellence, AFE continues to push the boundaries of automotive performance, offering complete performance packages that transform your vehicle into a powerhouse on the road.

When you choose AFE, you're choosing a brand that’s as passionate about performance as you are. Unleash your vehicle’s full potential and experience the AFE difference today!

​The aFe POWER Product Development center is where great ideas take shape. Our product development engineers utilize the most sophisticated tools available for data capture and reverse engineering of complex vehicle geometry such as floor surfaces, cargo areas, window openings or fenders. In the end, R&D, Engineering, Product Design, Tool Manufacture and Marketing all come together to create the finest automotive accessories available, from Concept to Consumer!

Nestled in Corona, California sits our company headquarters where all the manufacturing magic happens. Our modern headquarters is home to a variety of resources – from order fulfillment, to marketing, to shipping operations – in one location, right here in America! Just a few paces from the conveyor belts, you’ll find our very own publicly-accessible factory store, which features the best products in vehicle protection on display and available for purchase!​

​When you choose AFE, you're choosing a brand that’s as passionate about performance as you are. Unleash your vehicle’s full potential and experience the AFE difference today!

Fidanza Performance, founded in 1997, is a leading US manufacturer of high-quality lightweight aluminum flywheels, precision adjustable cam gears, and high-performance clutches. With nearly 20 years in the automotive performance market, Fidanza is renowned for its expertise and respected globally, offering products for a wide range of vehicles, from European sports cars to modern muscle cars and imports. The company originated in racing, with founder Lou Fidanza's success in the SCCA leading to the creation of specialty parts like aluminum flywheels. Fidanza has since expanded its product line to include cam gears and performance clutches, gaining a loyal customer base and worldwide recognition. In 2023 Fidanza opened the SpeedParts4Less Marketplace which sells other manufacturers quality high performance parts!