HurricaneFlow Air Cleaners for Sportsters & Buells

Big power requires big flow, and that's what the HurricaneFlow air cleaner is all about. From it's computer designed billet aluminum backplate to the extra large K&N element, this air cleaner is designed to PERFORM.

It's all about minimizing restriction and smoothing the air flow. The big K&N element  serves up filtration and diffusion in abundance, with LOTS of surface area to virtually eliminate restriction. The CNC-machined billet backplate recesses the element to smooth the transition as the air exits the media, and then takes the air around a specially designed huge radius ring to both boost velocity and eliminate turbulence. Even the size, shape, and locations of the stand-offs were chosen for their flow characteristics.

The result? Even on very mild motors, our dyno testing shows a significant improvement over the stock or SE offerings. With hotter motors, the difference gets even bigger!

(click for larger image)

Available for:

2004-up Sportsters (including fuel injected models)

1991-2003 Sportsters

1995-2002 Buells

S&S E and G carbs also available. Pricing is the same as our normal models.  Please call 303-702-1600 to order

Custom configurations available, please call. For example, we can have your air cleaner powder coated, or we can configure your forward offset air cleaner with an alternate sized element for even more knee clearance.

Note 1: to maximize power and reduce carbon build-up, HurricaneFlow air cleaners do not route the blow-by from the breathers into the intake tract the way the stock air cleaner does. We recommend routing the head breather outlets to a small filter (to absorb the moisture component), or to a catch can. See below for the accessories needed to do this.

Note 2: HurricaneFlow air cleaners are for off-highway, closed course competition use only and are not legal for sale or use on pollution controlled motor vehicles.

Note 3: HurricaneFlow air cleaners are designed to bolt up to the factory CV carburetor. The screw lengths are sized for maximum thread engagement and strength. When used with a Mikuni carburetor with a CV adapter ring, the supplied screws may be slightly too long and require shortening.

HurricaneFlow Air Cleaners For 2004-up Sportsters

For the 2004-up Sportsters, the HurricaneFlow is available with a 2" element in an on-center or forward offset design, or for the really big horsepower motors we offer it with a giant 3" element (available in the in a forward offset design only due to the knee clearance required). All versions use a billet front plate with a stepped perimeter to smooth the air flow as it passes through the media, and it also mounts your stock cover for that stealth look. These do work on 07 and up fuel injected Sportsters as well. You do not need a support bracket on fuel injected Sportsters but you do still need a breather kit.  You also will need an extra bolt that is available below.

    Centered Style                      Offset Style (3" shown)

Click on image for larger version

Ordering Information

Note:  2006 and earlier Sportster models require a carburetor support bracket  and breather kit for proper mounting of a HurricaneFlow Air Cleaner.  Fuel injected models do not require a support bracket but they do need a breather kit. NRHS offers everthing you will need, see below.

HurricaneFlow Air Cleaners For 1991-2003 Sportsters

Centered Style

Forward Offset Style - moved forward for knee clearance - 3" version shown but

also available in a 2" version for maximum knee clearance

For the 1991-2003 Sportsters, the HurricaneFlow is available in your choice of a 2" element in an on-center design or a 3" element in a forward offset design. Your original cover mounts on a pair of round standoffs and seals against the filter element.

Ordering Information

The extra large filter element of the forward offset style leaves

a small amount of filter element exposed.

Note: Sportster models require a carburetor support bracket for proper mounting of a HurricaneFlow Air Cleaner. NRHS offers support brackets in your choice of black or chrome finish, see below.

HurricaneFlow Air Cleaners For 1995-2002 Buells

HurricaneFlow air cleaners are now available for Buell tube frame models!

Buell M2, S1, S3, X1

Carbureted or injected, there's a HurricaneFlow air cleaner that's perfect for your Buell tube framer. Like all HurricaneFlow air cleaners, the Buell versions incorporate our exclusive CNC machined billet backplate that's specially designed to reduce turbulence and increase velocity. M2, S1, S3, and X1 versions also include a trick looking and super lightweight carbon fiber cover. A massive 3" element ensures your motor gets all the air it needs, and it's mounted as far forward as possible to give you knee clearance. It's also tilted down slightly to match the lines of your tank. Approximately an inch of filter element is left exposed, allowing free breathing. It all adds up to great looks, light weight, and MORE POWER for your Buell!

The NRHS 124hp Buell M2 shop mule uses a HurricaneFlow air cleaner.

HurricaneFlow on an injected S3

Ordering Information

Note: For X1 models, we recommend a set of tank accents available from American Sport Bike (pictured below).

X1 version with ASB tank accents

Buell S2

If you own a Buell S2, you already know what a special bike it is. Chances are, you also know what a problem the stock air cleaner is. The factory plastic back plate is subject to warpage and cracking, and that lets harmful dirt go straight into your motor. The HurricaneFlow not only fixes this problem nicely, but it incorporates the exclusive HurricaneFlow radius ring that increases intake velocity and eliminates turbulence. Uses your stock carbon fiber cover. Your S2 deserves a HurricaneFlow!

The S2 HurricaneFlow is offered with a 2" element only, as the 3" element can cause interference problems with the tank cover and the fairing lowers.

click for larger image

3" version shown. Approximately 1" of  filter is left exposed with the cover in place

Ordering Information

Note: The stock S2 filter cover has a plastic drip catcher incorporated into the lowest corner. When used with a HurricaneFlow, it will be necessary to remove this. It can easily be removed with pliers or a die grinder.

Does your stock S2 air cleaner look like this? Cracked and warped?

If so, it's not doing it's job. Replace it with a HurricaneFlow today!

Installation Accessories for HurricaneFlow Air Cleaners