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The RK-3945 and RK-3945B Add Style and Performance to your Harley® Sportster
The RK-3945 and RK-3945B Add Style and Performance to your Harley® Sportster
Nov 28, 2016
The RK-3945 intake looks great in both chrome (shown) and black
The chrome K&N RK-3945 Harley® intake and its dark sibling the K&N RK-3945B do something that very few motorcycle accessories can claim. The intakes offer up show-bike good looks while significantly boosting the performance of your late model Harley-Davidson®. The RK-3945 adds a bit of chrome bling to your Sportster, while the RK-3945B’s matte black cover compliments the black-out aesthetic that is popular in many new H-Ds.
Good looks aside, the RK-3945 intake is a proven power enhancement bolt-on accessory. The numbers don’t lie. The K&N dynamometer reveals an estimated 4.5 horsepower boost for a 2016 883cc Sporty wearing a RK-3945. For a 2015 1200cc Sportster, the dyno run shows a gain of an estimated 8.5 horsepower. The torque numbers are also impressive using the RK Street Metal intake on both Harleys. The combination of higher horsepower and torque will result in impressive acceleration and lively throttle response. Take a look dyno charts link on the product page to see all of the numbers. You’ll be impressed.
The intake is installed by removing the restrictive stock intake and filter and bolting on the attractive and carefully-engineered custom aluminum backing plate to the throttle body. The intake features an aluminum, integrated, internal-run breather system. A substantial, vibration absorbing gasket is also included in the kit. The installation process is simple and straightforward.
The RK-3945 intake is easy to install on your late model Sportster
The K&N filter that attaches to the intake features our free-flowing cotton gauze media that lets your V-twin breathe deeply. The oil-impregnated fiber material is a highly effective filtering system that extends service intervals. When it is time for a cleaning, the 99-5000 filter service kit makes the process quick and easy. Repeated use and disposal of paper filters will be a thing of the past when the RK-3945 is installed.
The filter comes pre-oiled and ready to install out of the box, and all installation hardware is included. Like all K&N filters and intakes, the RK-3945 is made in the USA and is backed by the K&N 10-year/Million Mile warranty.
Look through the application list below for the Harleys that will benefit from the RK-3945 or RK-3945B Street Metal intake.
The RK-3945 and RK-3945B fit the following H-D bikes:
2016 HARLEY DAVIDSON XL883N IRON 54 CI - All Models 2016 HARLEY DAVIDSON XL883L SUPERLOW 54 CI - All Models 2016 HARLEY DAVIDSON XL1200X FORTY-EIGHT 74 CI - All Models 2016 HARLEY DAVIDSON XL1200V SEVENTY-TWO 74 CI - All Models 2016 HARLEY DAVIDSON XL1200T SUPERLOW 74 CI - All Models 2016 HARLEY DAVIDSON XL1200C SPORTSTER CUSTOM 74 CI - All Models 2015 HARLEY DAVIDSON XL883N IRON 54 CI - All Models 2015 HARLEY DAVIDSON XL883L SUPERLOW 54 CI - All Models 2015 HARLEY DAVIDSON XL1200X FORTY-EIGHT 74 CI - All Models 2015 HARLEY DAVIDSON XL1200V SEVENTY-TWO 74 CI - All Models 2015 HARLEY DAVIDSON XL1200T SUPERLOW 74 CI - All Models 2015 HARLEY DAVIDSON XL1200C SPORTSTER CUSTOM 74 CI - All Models 2014 HARLEY DAVIDSON XL1200X FORTY-EIGHT 74 CI - All Models 2014 HARLEY DAVIDSON XL1200V SEVENTY-TWO 74 CI - All Models 2014 HARLEY DAVIDSON XL1200T SUPERLOW 74 CI - All Models 2014 HARLEY DAVIDSON XL1200C SPORTSTER CUSTOM 74 CI - All Models
The RK-3945 comes ready to install and ride
All of the necessary hardware comes in the box with the RK-3945B (pictured) and RK-3945
