The factory-equipped airbox flows an impressive 331 CFM – but it is designed to reduce intake noise, which creates a long, twisting road from the air filter to the throttle body.
Zipper’s MaxFlow air filter system is a competition use only system designed for 555 CFM exclusively for max performance, and does not yield any noticeable intake noise while out-flowing the factory intake by 40%!
Where the stock design is full of sharp turns and narrow passages, our wide mouth velocity stack design with conical filter promotes smooth, turbulence-free flow directly to the throttle body.
This instantly available clean column of air results in rapid acceleration with improved torque, horsepower and throttle response.
This intake system requires tuning to correct for the lean-unstable AFR's the system creates. When paired with a Zippers 4" muffler and tuning it can transform the power band and the riding experience of the Scout, gaining as much as 17+ ft-lbs. of torque and 15+ hp allows for a possible E.T. of 11.5 seconds at the track a with a stock engine!
Not legal for sale or use in California on any pollution controlled motor vehicle.
Not legal for sale or use on any EPA pollution controlled motor vehicle.
Accessory covers available to fit Zipper’s HiFlow and MaxFlow air filter kits. 8” round covers fit EVO cover applications. Want that radical open element look for your MaxFlow or HighFlow filter? Install one of these open-sided beauties for striking looks and maximum flow.
Add the famous classic teardrop air cleaner assembly to your ride - available separately from the S&S Air Filter Kits for repairs or maintenance. Choose either ventilated chrome or standard chrome cover.
Zipper's Performance offers two styles of breather filters are available for use with available air filter kits - Single Inlet Port and Dual Inlet Port.
Not legal for sale or use in California on any pollution controlled motor vehicle.
Not legal for sale or use on any EPA pollution controlled motor vehicle.
Replacement Element Only for Rushmore Air Cleaner Kit, Part #172-107
Not legal for sale or use in California on any pollution controlled motor vehicle.
Not legal for sale or use on any EPA pollution controlled motor vehicle.
Replacement Element Only for 117-442 Series Kits, Part #172-116
Not legal for sale or use in California on any pollution controlled motor vehicle.
Not legal for sale or use on any EPA pollution controlled motor vehicle.
Replacement Element Only for 117-449, 117-456, 117-459 Series Kits, Part #172-128
Not legal for sale or use in California on any pollution controlled motor vehicle.
Not legal for sale or use on any EPA pollution controlled motor vehicle.
Zipper’s designed a new air cleaner that retains the Rushmore cover for 2014-2016 Touring models while increasing airflow 47% over the factory system. NEW LOWER PRICE! Part #117-460
Not legal for sale or use in California on any pollution controlled motor vehicle.
Not legal for sale or use on any EPA pollution controlled motor vehicle.
A nice power increase that’s easy to install! Zipper's Premium MaxFlow Air Cleaner Kits
Not legal for sale or use in California on any pollution controlled motor vehicle.
Not legal for sale or use on any EPA pollution controlled motor vehicle.
Please choose your application below then select the radio button next to the item to purchase, then add to cart
A nice power increase that’s easy to install! Zipper's Premium MaxFlow Air Cleaner Kits
Not legal for sale or use in California on any pollution controlled motor vehicle.
Not legal for sale or use on any EPA pollution controlled motor vehicle.
Please choose your application below then select the radio button next to the item to purchase, then add to cart
Is your bike already equipped with a factory Stage I performance air cleaner? Zipper's MaxFlow Stage I Upgrade Kit takes about 5 minutes to install - the difference is immediately noticeable!
Not legal for sale or use in California on any pollution controlled motor vehicle.
Not legal for sale or use on any EPA pollution controlled motor vehicle.
Replacement Element Only for 117-440 Series Kits and 117-296 MaxFlow Stage I Upgrade Kit, Part #172-114
Not legal for sale or use in California on any pollution controlled motor vehicle.
Not legal for sale or use on any EPA pollution controlled motor vehicle.
Raise the level another step! Zipper's MaxFlow Stage I Upgrade Kit takes about 5 minutes to install - the difference is immediately noticeable!
Not legal for sale or use in California on any pollution controlled motor vehicle.
Not legal for sale or use on any EPA pollution controlled motor vehicle.
Is your bike already equipped with a factory Stage I performance air cleaner? Zipper's MaxFlow Stage I Upgrade Kit takes about 5 minutes to install - the difference is immediately noticeable!
Not legal for sale or use in California on any pollution controlled motor vehicle.
Not legal for sale or use on any EPA pollution controlled motor vehicle.
Replacement back plates for S&S air filter kits. Available separately for repairs or maintenance.
Not legal for sale or use in California on any pollution controlled motor vehicle.
Not legal for sale or use on any EPA pollution controlled motor vehicle.
S&S air cleaners for EFI--add the famous classic teardrop air cleaner assembly to your ride. Replacement back plates, covers and filter elements for S&S applications available separately for repairs or maintenance.
Not legal for sale or use in California on any pollution controlled motor vehicle.
Not legal for sale or use on any EPA pollution controlled motor vehicle.
Please choose your application below then select the radio button next to the item to purchase, then add to cart
S&S air cleaners for stock carb and S&S E/G carbs--add the famous classic teardrop air cleaner assembly to your ride. Replacement back plates, covers and filter elements for S&S applications available separately for repairs or maintenance.
Not legal for sale or use in California on any pollution controlled motor vehicle.
Not legal for sale or use on any EPA pollution controlled motor vehicle.
Please choose your application below then select the radio button next to the item to purchase, then add to cart
Here’s a nice USA-Made power increase that’s easy to install and easy on the budget! Bolt it on and feel the difference! NEW LOWER PRICE!
Not legal for sale or use in California on any pollution controlled motor vehicle.
Not legal for sale or use on any EPA pollution controlled motor vehicle.
Here’s a nice USA-Made power increase that’s easy to install and easy on the budget! Bolt it on and feel the difference!
NEW LOWER PRICE!
Not legal for sale or use in California on any pollution controlled motor vehicle.
Not legal for sale or use on any EPA pollution controlled motor vehicle.
Customize your HighFlow or MaxFlow air cleaner with one of these lids. Fits Zipper's HighFlow and Zipper's MaxFlow Air Cleaners.
Not legal for sale or use in California on any pollution controlled motor vehicle.
Not legal for sale or use on any EPA pollution controlled motor vehicle.
Zipper’s Air Filter kits are designed to maximize available airflow and minimize intake turbulence at the entry point. We start with a fully machined, radius inlet billet backplate, and add special mounting and crankcase venting hardware that allows the installer to route breather venting internally or externally (purchase vent filter separately if external).
*1 Accepts stock '07-up oval Sportster® outer air cleaner cover (not included)
*2 Accepts EV BT round cover or accessory 8" covers (not included)
Not legal for sale or use in California on any pollution controlled motor vehicle.
Not legal for sale or use on any EPA pollution controlled motor vehicle.
Please choose your application below then select the radio button next to the item to purchase, then add to cart