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Afe

Afe

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

SKU: AFE46-39101

Throttle Bodies

AFE Throttle Bodies

Afe

Afe

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

SKU: AFE46-39101

Throttle Bodies

AFE Throttle Bodies

A$1,370.19
IN STOCK! Est Ship 3-5 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.
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Description

Test results on aFe’s Dynojet dyno showed power gains across the power band, topping out at +17 HP and +15 lb-ft torque at 6,000 rpm. Testing was conducted on a 2020 Mustang 5.0 comparing stock and the aFe Power BTB (all tests conducted using 91-octane fuel). No other modifications to the vehicle were made, so imagine the potential when you add in other performance enhancing products such as a cold air intake, tuner and cat-back exhaust! By the way, for you truck enthusiasts, this product also fits the F-Series (see application table for exact vehicle fitment). Not only did we increase the bore diameter from the stock 80 mm to 85 mm, we redesigned the throttle body from the ground up, aerodynamically improving the air flow path. Why 85 mm and not larger? 3 reasons: 1) At 85 mm, no custom tuning is required so this works right out of the box; 2) The 85 mm diameter provides a direct path into the 84 mm intake manifold opening, a larger diameter would require modification to the stock manifold, or use of an aftermarket one; and 3) The mounting diameter for your intake tube is only slightly increased, but it allows you to retain the stock intake tube or you can upgrade to a cold air intake without having any special adapters. Not wanting to be like the rest, aFe chose to make the BTB out of billet 6061-T6 aluminum, precision machined and capped off with a black anodized finish for that stealthy custom look. As a finishing touch, we have laser etched the aFe Power logo and throttle body size right on the top. The throttle plate is made of brass, the significance here is to eliminate the chance of galling against the aluminum body. Each throttle body is serialized for authenticity.

Product Overview

Test results on aFe’s Dynojet dyno showed power gains across the power band, topping out at +17 HP and +15 lb-ft torque at 6,000 rpm. Testing was conducted on a 2020 Mustang 5.0 comparing stock and the aFe Power BTB (all tests conducted using 91-octane fuel). No other modifications to the vehicle were made, so imagine the potential when you add in other performance enhancing products such as a cold air intake, tuner and cat-back exhaust! By the way, for you truck enthusiasts, this product also fits the F-Series (see application table for exact vehicle fitment). Not only did we increase the bore diameter from the stock 80 mm to 85 mm, we redesigned the throttle body from the ground up, aerodynamically improving the air flow path. Why 85 mm and not larger? 3 reasons: 1) At 85 mm, no custom tuning is required so this works right out of the box; 2) The 85 mm diameter provides a direct path into the 84 mm intake manifold opening, a larger diameter would require modification to the stock manifold, or use of an aftermarket one; and 3) The mounting diameter for your intake tube is only slightly increased, but it allows you to retain the stock intake tube or you can upgrade to a cold air intake without having any special adapters. Not wanting to be like the rest, aFe chose to make the BTB out of billet 6061-T6 aluminum, precision machined and capped off with a black anodized finish for that stealthy custom look. As a finishing touch, we have laser etched the aFe Power logo and throttle body size right on the top. The throttle plate is made of brass, the significance here is to eliminate the chance of galling against the aluminum body. Each throttle body is serialized for authenticity.


Features and Benefits

  • 85mm Bore Diameter
  • No tuning required
  • Aerodynamically designed flow path
  • Dyno proven HP and TQ gains
  • Retains OEM electronics and gearing mechanism
  • No rough idling, No CEL
  • Billet Aluminum, precision machined, black anodized finish
  • Perfect fitment, subtle, custom look
  • Furnished complete, all hardware included
  • Simple installation, less than 1 hour

Product Details

Color:Black
Description:aFe POWER 85mm Throttle Body
Finish:Anodized
Gaskets Included:No
Horsepower Increase:17
Material:6061-T6 Aluminum
Mounting Hardware Included:Yes
Part Number:afe46-39101
Torque Increase:15
WARNING CA Proposition 65 Message:WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
WARNING CA Proposition 65:Yes

Application Summary

Ford Mustang GT 18-24 V8-5.0L

Part Type

Fuel Injection Throttle Body

Data: v4.2 - Upd: 2026-10-11 02:32:56

Features

  • 85mm Bore Diameter
  • Aerodynamically designed flow path
  • Billet Aluminum, precision machined, black anodized finish
  • Dyno proven HP and TQ gains
  • Furnished complete, all hardware included
  • No rough idling, No CEL
  • No tuning required
  • Perfect fitment, subtle, custom look
  • Retains OEM electronics and gearing mechanism
  • Simple installation, less than 1 hour

Specifications

Product Attributes - UPC
802959468111
Product Attributes - Brand
AFE Power
Product Attributes - Notes
Airflow is measured at 90 percent throttle opening.
Product Attributes - Quantity
Sold individually.
Product Attributes - Part Type
Throttle Bodies
Product Attributes - Product Line
aFe Billet Throttle Bodies
Product Attributes - Gaskets Included
No
Product Attributes - Venturi Quantity
1
Product Attributes - Hardware Included
Yes
Product Attributes - Airflow Rate (cfm)
492 cfm
Product Attributes - IAC Motor Included
No
Product Attributes - Injectors Included
No
Product Attributes - TPS Sensor Included
No
Product Attributes - Throttle Body Style
Multi-port injection, MPI
Product Attributes - Throttle Body Finish
Black anodized
Product Attributes - Venturi Diameter (mm)
85.00mm
Product Attributes - Throttle Body Material
Billet aluminum
Product Attributes - Throttle Body Actuation
Drive-By-Wire
Product Attributes - Manufacturer's Part Number
46-39101

Reference Information

Brand Name/s Afe
StreetFX SKU afe46-39101
SFX Item ID 4373505
Supplier Item Code 4373505
Manufacturer SKU 46-39101
Manufacturer UPC 802959468111
Alternative References 5.0L, 85mm

Compatibility

Ford Mustang GT 18-24 V8-5.0L

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