PCX (Power Chamber Exhaust) technology Chambered high-flow catalyst cartridge designed to increase torque Full coverage heat shields 49-state emissions compliant Includes mounting hardware and installation instructions Made in the U.S.A. - Harley-Davidson Softail Slim FLSL (2020, 2018, 2021, 2019); Harley-Davidson Softail Low Rider S FXLRS (2022, 2023, 2020, 2021, 2024); Harley-Davidson Softail Low Rider FXLR (2018, 2019, 2020); Harley-Davidson Softail Deluxe FLDE (2018, 2019, 2020); Harley-Davidson Softail Heritage Classic 114 FLHCS (2024, 2023); Harley-Davidson Softail Fat Bob 114 FXFBS (2020, 2022, 2018, 2019, 2023, 2021); Harley-Davidson Softail Street Bob FXBB (2018, 2020, 2024, 2021, 2022, 2023, 2019); Harley-Davidson Softail Standard FXST (2022, 2024, 2020, 2023, 2021); Harley-Davidson Hydra-Glide Revival (2024); Harley-Davidson Softail Low Rider ST FXLRST (2024, 2022, 2023); Harley-Davidson Softail Fat Bob FXFB (2019, 2018)