More Airflow =More Power. Increase the horsepower output and throttle response on your 5.0 Coyote equipped 2018-19 Mustang GT with this BBK 85mm throttle body. The BBK 85mm throttle body will extract more horsepower and torque from your engine while also improving throttle response. BBK Mustang throttle bodies work with both OEM air intakes and aftermarket cold air intakes to ensure perfect fit and excellent performance. Top Quality Construction. BBK 85mm Mustang throttle bodies are CNC machined from high quality 356 aluminum castings to ensure perfect quality. Features new electronic controlled injection molded plastic gear assemblies and OEM quality throttle motor and electronics. Easy Installation. This 85mm Coyote 5.0 throttle body comes complete with all required hardware and instructions for an easy install on your 2018-19 S550 Mustang right out of the box. Tuning Notice. Our engineers have designed our electronic throttle control performance throttle bodies to work in most cases with a factory tune, however depending on other modifications and ECM sensitivity on your specific application a tune is sometimes recommended, this is true with most other brand aftermarket performance throttle bodies as well. While its not normally required, a tune will not only allow the vehicle to work with certain aftermarket add ons but will also improve overall performance of your entire array of upgrades to work together as a whole