K&N Engineering K&N Street Metal Intake System - Big 8 Black for Harley Davidson RK-3948B
KN Street Metal Intake System
Air Cleaner Assembly
K&N's Street Metal Series High-Flow Air Intake Systems provide a good looking appearance, offer increased airflow and deliver more horsepower & torque to your Harley-Davidson motorcycle. These intake systems increase power by eliminating the stock OE air cleaner and replacing it with a complete high-flow air intake system. The sturdy, custom aluminum backing plate mounts directly to the throttle body via an aluminum integrated, internal-run breather system. At the heart of this system is K&N's Air Filter which offers increased air flow, long service intervals, and is pre-oiled ready to be installed. The black custom cover plate with chrome accents gives this air intake good looks while powering down the highway or at your local show.
K&N's Street Metal Series High-Flow Air Intake Systems provide a good looking appearance, offer increased airflow and deliver more horsepower & torque to your Harley-Davidson motorcycle.
Vehicle Fitments:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2018 - 2020 | Harley Davidson | FLDE Deluxe 107 | Base |
| 2018 - 2019 | Harley Davidson | FLFB Fat Boy 107 | Base |
| 2018 - 2021 | Harley Davidson | FLFBS Fat Boy 114 | Base |
| 2018 - 2021 | Harley Davidson | FLHC Heritage Classic 107 | Base |
| 2018 - 2021 | Harley Davidson | FLHCS Heritage Classic 114 | Base |
| 2017 - 2021 | Harley Davidson | FLHR Road King | Base |
| 2018 - 2021 | Harley Davidson | FLHRXS Road King Special | Base |
| 2018 - 2021 | Harley Davidson | FLHT Electra Glide Standard | Base |
| 2017 - 2019 | Harley Davidson | FLHTCU Electra Glide Ultra Classic | Base |
| 2017 - 2021 | Harley Davidson | FLHTCUTG Tri Glide Ultra | Base |
| 2017 - 2021 | Harley Davidson | FLHTK Ultra Limited | Base |
| 2017 - 2019 | Harley Davidson | FLHTKL Ultra Limited Low | Base |
| 2017 - 2021 | Harley Davidson | FLHX Street Glide | Base |
| 2017 - 2021 | Harley Davidson | FLHXS Street Glide Special | Base |
| 2017 - 2021 | Harley Davidson | FLRT Freewheeler | Base |
| 2018 - 2021 | Harley Davidson | FLSB Sport Glide 107 | Base |
| 2018 - 2021 | Harley Davidson | FLSL Softail Slim 107 | Base |
| 2020 - 2021 | Harley Davidson | FLTRK Road Glide Limited | Base |
| 2017 - 2019 | Harley Davidson | FLTRU Road Glide Ultra | Base |
| 2017 - 2021 | Harley Davidson | FLTRX Road Glide | Base |
| 2017 - 2021 | Harley Davidson | FLTRXS Road Glide Special | Base |
| 2018 - 2020 | Harley Davidson | FXBB Street Bob 107 | Base |
| 2021 | Harley Davidson | FXBBS Street Bob 114 | Base |
| 2018 - 2019 | Harley Davidson | FXBR Breakout 107 | Base |
| 2018 - 2020 | Harley Davidson | FXBRS Breakout 114 | Base |
| 2018 - 2019 | Harley Davidson | FXFB Fat Bob 107 | Base |
| 2018 - 2021 | Harley Davidson | FXFBS Fat Bob 114 | Base |
| 2018 - 2020 | Harley Davidson | FXLR Low Rider 107 | Base |
| 2020 - 2021 | Harley Davidson | FXLRS Low Rider S 114 | Base |
| 2020 - 2021 | Harley Davidson | FXST Softail Standard 107 | Base |