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This listing is for AFE Filters 46-39101 aFe Power Throttle Body

Part Number 46-39101

Advanced FLOW Engineering (aFe Power) designs and manufactures performance air, exhaust and power-management systems for trucks, SUVs and sport compacts, with a particular strength in diesel truck performance. Founded in 1999 and still headquartered in Corona, California, aFe builds in-house across two facilities totalling 164,000 square feet — filters, intakes, exhaust, headers, intercoolers and torque converters are made on site, with CNC machining, mandrel tube bending and dyno testing under the same roof. The catalogue spans cold air intakes, direct-fit and racing air filters, cat-back and axle-back exhaust, intercoolers, turbochargers, electronic programmers, diesel fuel systems and throttle body spacers, across more than 2,500 applications. Recognisable product families include Pro 5R, Pro Dry S and Pro Guard 7 filter media, Takeda for sport compact intakes and exhaust, BladeRunner intercoolers and manifolds, Scorcher programmers, Aries powersports filtration, and aFe Control for suspension and chassis.

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.

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