Frequently bought together:
Description
Aggressive pulling power with a nasty sound, the Reaper 521 grind will shine in 114 and larger cubic inch engines with added compression ratio
Ported cylinder heads are not required, but will complement the cam and add even more pulling power throughout the range
Stock throttle body produces an excellent powerband; use of a high-flow throttle body may increase peak power numbers
A high-flow exhaust system and air cleaner is highly recommended for optimal performance - Harley-Davidson Electra Glide Ultra Limited Low FLHTKL (2019, 2018, 2017); Harley-Davidson Road Glide Custom FLTRX (2018, 2021, 2019, 2020, 2024, 2023, 2017, 2022); Harley-Davidson Road King Special FLHRXS (2018, 2019, 2020, 2024, 2022, 2023, 2021, 2017); Harley-Davidson Road Glide Ultra FLTRU (2018, 2019, 2017); Harley-Davidson Softail Slim FLSL (2018, 2021, 2019, 2020); Harley-Davidson Softail Street Bob FXBB (2018, 2020, 2024, 2022, 2023, 2019, 2021); Harley-Davidson Street Glide EFI FLHX (2020, 2024, 2019, 2017, 2022, 2023, 2018, 2021); Harley-Davidson Softail Heritage Classic FLHC (2020, 2018, 2019, 2021); Harley-Davidson Softail Sport Glide FLSB (2020, 2018, 2019, 2021); Harley-Davidson Road Glide Special FLTRXS (2021, 2020, 2018, 2019, 2017, 2022, 2023); Harley-Davidson Softail Fat Boy 114 FLFBS (2021, 2023, 2024, 2018, 2020, 2019, 2022); Harley-Davidson Hydra-Glide Revival (2024); Harley-Davidson Softail Standard FXST (2022, 2021, 2020, 2023, 2024); Harley-Davidson Softail Fat Bob 114 FXFBS (2022, 2020, 2021, 2018, 2019, 2023); Harley-Davidson Tri Glide Ultra Classic FLHTCUTG (2023, 2017, 2018, 2024, 2021, 2020, 2019, 2022); Harley-Davidson CVO Tri Glide FLHTCUTGSE (2021, 2022, 2020); Harley-Davidson Electra Glide Police FLHTPI (2017, 2018, 2019, 2020, 2021, 2023, 2022, 2024); Harley-Davidson Softail Breakout FXBR (2019, 2023, 2018, 2024); Harley-Davidson Softail Fat Boy FLFB (2018, 2019); Harley-Davidson Electra Glide Standard EFI FLHTI (2020, 2022, 2021, 2019); Harley-Davidson Road Glide Limited FLTRK (2020, 2021, 2022, 2024, 2023); Harley-Davidson Softail Heritage Classic 114 FLHCS (2020, 2019, 2018, 2022, 2023, 2021, 2024); Harley-Davidson Electra Glide Ultra Limited FLHTK (2023, 2018, 2019, 2020, 2024, 2017, 2021, 2022); Harley-Davidson CVO Road Glide Custom FLTRXSE (2022, 2023, 2018, 2024, 2021, 2019, 2020); Harley-Davidson CVO Road Glide Limited (2022, 2023); Harley-Davidson Road Glide ST FLTRXST (2023, 2022); Harley-Davidson Freewheeler FLRT (2021, 2019, 2020, 2017, 2022, 2023, 2018, 2024); Harley-Davidson CVO Street Glide FLHXSE (2019, 2017, 2020, 2021, 2022, 2023, 2018, 2024); Harley-Davidson Road King EFI FLHR (2017, 2019, 2022, 2021, 2020, 2018); Harley-Davidson Street Glide Special FLHXS (2021, 2017, 2022, 2023, 2018, 2019, 2020); Harley-Davidson Softail Low Rider S FXLRS (2024, 2021, 2020, 2022, 2023); Harley-Davidson Softail Low Rider ST FXLRST (2023, 2022, 2024); Harley-Davidson CVO Road Glide ST FLTRXSTSE (2024); Harley-Davidson Electra Glide Revival (2021); Harley-Davidson Road King Police FLHP (2018, 2021, 2022, 2024, 2019, 2020, 2023); Harley-Davidson Softail Fat Bob FXFB (2019, 2018); Harley-Davidson Softail Low Rider FXLR (2020, 2019, 2018); Harley-Davidson Electra Glide Ultra Classic EFI FLHTCUI (2017, 2019, 2018); Harley-Davidson Softail Breakout 114 FXBRS (2019, 2018, 2020); Harley-Davidson Softail Deluxe FLDE (2019, 2020, 2018); Harley-Davidson CVO Electra Glide Ultra Limited FLHTKSE (2020, 2019, 2017, 2018, 2021); Harley-Davidson Street Glide ST FLHXST (2023, 2022); Harley-Davidson Electra Glide Highway King FLHFB (2023); Harley-Davidson Softail Low Rider El Diablo FXRST (2022); Harley-Davidson Road Glide Police FLTRXP (2024); Harley-Davidson FXDR 114 (2019, 2020)
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