K&N’s New Street Metal Series High-Flow Air Intake Systems

K&N’s New Street Metal Series High-Flow Air Intake Systems provide a good looking appearance, offer increased airflow and deliver more horsepower and torque to your Harley-Davidson® motorcycle.  As an example, the Hammer System gained an estimated 10.17HP AND 10.27LBFT of torque at the rear wheel on a stock 2010 HD Fat Bob 96CI.  It increases power by eliminating the stock OE air cleaner and replacing it with a complete High-Flow Air Intake System.  

The sturdy, cast aluminum backing plate mounts directly to the throttle body via a aluminum integrated internal-run breather system.   An original K&N High-Flow Air Filter is used, lowering restriction while providing long service intervals.  A durable mounting gasket is used to absorb vibration.  K&N High-Flow Air Filters are washable, reusable, pre-oiled and ready to ride.  

• No Fuel-management modifications necessary to obtain increased performance
• Kits are sold complete, with mounting hardware included
• Covered by K&N’s famous Million-Mile Limited Warranty
• RK Series Intake systems are street legal in most states. However, they are not legal for use in California and other states adopting California emission standards

‘99-‘07 HD Twin-Cam®FI/’08-11 Dyna®/Softail® 

K&N Engineering, Inc.

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