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Arlen Ness Billet Sucker Stage I Air Cleaner Install (Intro)

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Arlen Ness Billet Sucker Stage I Air Cleaner Install (Intro)

Arlen Ness Billet Sucker Stage I Air Cleaner Install

Arlen Ness Billet Sucker Stage I Air Cleaner Install

By Chris Maida/Photos by Chelsea Maida

We gained 9 hp with this air cleaner kit and a Dynojet Power Vision tuner!

Who wouldn’t like to get more power and a big improvement in his bike’s looks with one upgrade? The Arlen Ness Billet Sucker Stage I air cleaner kit for 1999-2013 Twin Cam engines gives you both at a great price. We went with a chrome scalloped cover (#18-811/$229.95) on our 2006 bike. However, if you prefer to keep your bike looking stock, the Stage I kits give you the option of reusing the stock cover.

The Ness Big Sucker line of air cleaners has been around for over 10 years, and they have proven to be a winner time and time again. This setup features a one-piece aluminum backing plate that has two hidden breather ports, which have an O-ring where they join the head. The oily mist from the engine is then brought right to the mouth of the engine’s carb/throttle body. This design eliminates the ugly stock external hoses and hardware. This backing plate — available in standard, black powdercoat, or chrome finish — also has a radius air inlet for unobstructed airflow into the engine. More air in means more fuel can be added with the result being more power. As for the filter element, you can get a standard red filter, which is pre-oiled, washable, and made of four layers of surgical grade cotton. This is our version. Arlen Ness also offers a synthetic material steel jacketed filter element that’s water resistant and never needs to be oiled. Just wash it when dirty and reinstall.

Stock Harley Air Cleaner bracket

After taking off the stock Harley air filter, remove the outer cover’s bracket from the filter element using a T-27 Torx on the three bolts.

As we said earlier, more air in means you can add more fuel. To add that additional fuel, we also used a Dynojet Power Vision tuner (#PV-1/$549). This setup is very easy to use and completely eliminates the need for a computer to monitor the system or load fuel maps. You just select the tune that best fits your bike’s air cleaner and exhaust setup, upload it using the included Power Vision screen, and fire up the bike! You can even edit the tune you just loaded if you choose. The Power Vision device also downloads and stores your bike’s stock calibration maps, as well as let you store up to eight different tunes, which can be flashed to your bike any time you want. If you make major changes to your engine later on, Power Vision can be used to make a custom tune specifically for that performance part configuration. As for its monitoring features, Power Vision shows you how your bike is running, allows you to check and clear diagnostic codes, reset adaptive fuel trims and idle offset (with the bike running), and display all J1850 and CAN H-D vehicle data, as well as wide band air/fuel ratios and various other channels, like MPG instant and trip readings.

Breather Hoses Stock Harley Air Cleaner

Now pull the filter element from the air cleaner inner cover and disconnect it from the two breather hoses that are on the breather bolts.

Though you can tune your bike yourself with a Power Vision unit, we went to our buddy John at Dyno Solutions to have him load up the proper map and then do our dyno runs. Be sure to check out the accompanying dyno chart to see what and where our gains are. Just remember, this bike also already has a set of performance slip-on mufflers. We did the build this way this time since many owners first change out the mufflers for a better sound and a bit more power and then do the air cleaner. AIM

Arlen Ness Billet Sucker Backplate

Torquing the new Arlen Ness Billet Sucker backplate into place.



Arlen Ness Enterprises  (925) 479-6300


Like what you see? The full article with all the steps, tips, tricks, and tools needed is in American Iron Magazine issue # 337! To order a back issue of this or any other issue of American Iron Magazine, visit Greaserag.com.
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