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K&N Engineering — K&N Oval Red 9in Intake System for Harley-Davidson
Air Intake System
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Cold Air Intakes

K&N Engineering

K&N Oval Red 9in Intake System for Harley-Davidson Air Intake System

SKU: knnRK-3910-1

K&N's RK Series was developed to get more horsepower from your Twin Cam Harley-Davidson engine. Built around the legendary K&N High-Flow Air Filter, the this RK Series assembly includes an innovative powder coated billet aluminum back plate that eliminates external breathers and features a built-in, dyno-tuned velocity stack. The result is a significant airflow increase to the engine without sacrificing filtration....

Installation manual

$264.99
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Overview

K&N's RK Series was developed to get more horsepower from your Twin Cam Harley-Davidson engine. Built around the legendary K&N High-Flow Air Filter, the this RK Series assembly includes an innovative powder coated billet aluminum back plate that eliminates external breathers and features a built-in, dyno-tuned velocity stack. The result is a significant airflow increase to the engine without sacrificing filtration. This RK Series assembly retains a factory appearance by utilizing the stock air cleaner cover. The RK-3910-1 comes with a larger air filter and longer spacers than the RK-3909-1.

Features

  • Excellent air filtration
  • Large Capacity 2-1/4"
Assembly, Large Capacity 2-1/4" Intake System-Harley Davidson

Installation (catalog file)

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