Throwing a set of aftermarket performance exhaust headers onto your awesome 2015-2023 Mustang 5.0L GT is by far one of the most effective power upgrades you can make to your awesome Pony, especially if you grab a set of long tube headers, a matching mid-pipe, and get the required custom tuning to boot. Long tube headers and aftermarket mid-pipes improve and enhance your 5.0L Coyote V8's exhaust outflow by leaps and bounds over stock, allowing your 2015-2023 Mustang's muscular motor to breathe easier and more effectively for huge power gains. Long tube headers and mid-pipes are especially effective in supercharged applications where all that boost pressure and extra exhaust gas needs to be shuttled out of your Pony's cylinders quickly. Ford Mustang Fitments: 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023 Ford Mustang 5.0L. Submodel Fitments: GT, GT Premium, Fastback, Convertible Some exceptions apply, please see individual product pages for specific fitments.