K&N's Street Metal Series High-Flow Air Intake Systems offer increased airflow and deliver more horsepower & torque to your Harley-Davidson motorcycle.
The K&N RK-3943 High-Flow Air Intake System increases engine intake airflow and delivering more horsepower & torque to certain Harley-Davidson XL1200 model motorcycles. The intake system increases 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. The intake system comes with a K&N Air Filter for high air flow and long service intervals. The K&N High-Flow Air Filter is washable, reusable, pre-oiled and ready for installation.
Application Summary:
| Year |
Make/Model |
| 2014-2018 |
Harley Davidson XL1200C Sportster 1200 Custom |
| 2017-2018 |
Harley Davidson XL1200CX Roadster |
| 2014-2017 |
Harley Davidson XL1200T SuperLow 1200T |
| 2014-2016 |
Harley Davidson XL1200V Seventy-Two |
| 2014-2017 |
Harley Davidson XL1200X Forty-Eight |
| 2015-2018 |
Harley Davidson XL883L SuperLow |
| 2015-2016 |
Harley Davidson XL883N Iron 883 |
| Attributes |
| Air Filter Color |
Red |
| Air Filter Height |
2.25 in (57 mm) |
| Air Filter Material |
Cotton Gauze |
| Air Filter Washable |
Yes |
| ASIN |
B01BZH30EY |
| California Proposition 65 |
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
| California Restricted |
Not legal for sale or use in California |
| CARB EO Number |
D-269-59 |
| Color / Finish |
Red Filter |
| Country of Origin (Primary) |
US |
| Emission Code |
Not in CA |
| Estimated Horsepower Gain |
6.35 HP @ 5279 RPM |
| Harmonized Tariff Code (Schedule B) |
8421310000 |
| Hazardous Material Code |
N |
| Horse Power Increase |
6 HP |
| Life Cycle Status Code |
Discontinued |
| Mounting Hardware Included |
Yes |
| NAFTA Preference Criterion Code |
B |
| Overall Height |
2.5 in (64 mm) |
| Package Material |
Paperboard |
| Package Type |
Box |
| Product Box Height |
4.88 in (124 mm) |
| Product Box Length |
11.75 in (298 mm) |
| Product Box Width |
9.5 in (241 mm) |
| Product Style |
Motorcycle Intake System |
| Replacement Filter |
E-3040 |
| RPM |
5279 |
| SDR Required Flag |
N |
| Street Legal In All US States |
No, See Vehicle Applications |
| Top Material |
None |
| TUV Approved (Europe) |
No, No |
| Warranty |
12 Months |
| Warranty Time |
12 |
| Weight |
3.4 lb (1.6 kg) |
| GTIN |
00024844362667 |
