Available 117 M8 models. 117 to 128" big bore kit. Black Granite with Highlighted Fins. Bolt on kit. No Machining Required. includes gaskets and hardware required for installation. 4.250" bore. Forged Pistons. 11:1 compression ratio. Fitments: Harley Davidson FLDE Softail Deluxe 2018 - 2019, Harley Davidson FLFB Softail Fat Boy 2018 - 2019, Harley Davidson FLFBS Softail Fat Boy 114 2018 - 2019, Harley Davidson FLHC Softail Heritage Classic 2018 - 2019, Harley Davidson FLHCS Softail Heritage Classic 114 2018 - 2019, Harley Davidson FLHR Road King EFI 2017 - 2019, Harley Davidson FLHRXS Road King Special 2017 - 2019, Harley Davidson FLHTCUI Electra Glide Ultra Classic EFI 2017 - 2019, Harley Davidson FLHTI Electra Glide Standard EFI 2019, Harley Davidson FLHTK Electra Glide Ultra Limited 2017 - 2019, Harley Davidson FLHTKL Electra Glide Ultra Limited Low 2017 - 2019, Harley Davidson FLHTKSE CVO/SE Electra Glide Ultra Limited 2017 - 2019, Harley Davidson FLHTPI Electra Glide Police EFI 2017 - 2019, Harley Davidson FLHX Street Glide EFI 2017 - 2019, Harley Davidson FLHXS Street Glide Special 2017 - 2019, Harley Davidson FLHXSE CVO/SE Street Glide 2017 - 2019, Harley Davidson FLSB Softail Sport Glide 2018 - 2019, Harley Davidson FLSL Softail Slim 2018 - 2019, Harley Davidson FLTRU Road Glide Ultra 2017 - 2019, Harley Davidson FLTRX Road Glide Custom 2017 - 2019, Harley Davidson FLTRXS Road Glide Special 2017 - 2019, Harley Davidson FLTRXSE CVO/SE Road Glide Custom 2018 - 2019, Harley Davidson FXBB Softail Street Bob 2018 - 2019, Harley Davidson FXBR Softail Breakout 2018 - 2019, Harley Davidson FXBRS Softail Breakout 114 2018 - 2019, Harley Davidson FXDR 114 2019, Harley Davidson FXFB Softail Fat Bob 2018 - 2019, Harley Davidson FXFBS Softail Fat Bob 114 2018 - 2019, Harley Davidson FXLR Softail Low Rider 2018 - 2019