Arlen Ness 600-031

Velocity 90 performance air cleaners feature a forward-facing intake design positioned at a 90° angle. The intake's 90° angle & proprietary Velocity filter result in massive performance gains while keeping ample legroom for aggressive riders 

• 90° Forward-Facing Intake Design
• Patented hidden breather technology 
• High performance black oiled cotton air filter  
• Increased Horsepower, torque & mileage 
• Excellent Leg Room 
• Will work with factory Bagger lower fairings (lowers) 
• Aluminum Backing Plate & Air Cleaner Elbow 
• Chrome finish 

Aluminum One-Piece Backing Plate:

• Made from aluminum 
• Our patented hidden breather technology is o-ringed at the heads and exist out the mouth of the injector/carb to provide efficient engine breathing, eliminating the need for any external hoses or hardware for a virtually closed loop system 
• Smooth and sculpted backing plate shape wraps around the throttle body for excellent leg room 
• Milwaukee-Eight™ (M8) engine applications include a formed throttle servo cover that is finished in black powdercoat
• Backing plate is finished chrome 

High Performance Synthetic Air Filter:

• High performance black oiled cotton air filter
• Features a inverted top design that forces air through the front of the filter in addition to the sides of the filter 
• Smooth outer filter ring integrated into the front of the filter acts as a radius air inlet 

Aluminum Air Cleaner Elbow:

• Aluminum single-piece design  
• 90° positioning & short length results in excellent legroom by keeping intake tight to motorcycle (will fit with FLT Bagger lowers)
• Hidden air filter clamping area for no exposed clamps resulting in a clean look 
• Finished in chrome 

BACKING PLATE ASSEMBLY (FITMENT SPECIFIC)

08-16 FLT / 16-17 SOFTAIL & FXDLS (FBW)

Backing Plate: 81-000-1C

Breather Bolts: 81-005-2C (2)

Breather Bolt Copper Washers: H-070 (2)

Breather Bolt O-Rings (2pack): H-024

Throttle Body Gasket: 18-500-5

Throttle Body Hardware, 1/4-20 x 3/4: H-656Z (3)

00-17 TWIN CAM (EXC. FBW)

Backing Plate: 81-005-1C

Breather Bolts: 81-005-2C

Breather Bolt Copper Washers:H-070

Breather Bolt O-Rings (2pack): H-024

Throttle Body Gasket: 18-510-2

Throttle Body Hardware, 1/4-20 x 3/4: H-656Z (3)

Throttle Body Elbow Intake Cover: 81-005-3B

Throttle Body Elbow Cover bolts 6-32x14 Flathead Allen: H504S (2)

91-UP XL SPORTSTER

Backing Plate: 81-010-1C

Breather Bolts: 81-010-3C (2)

Breather Bolt Copper Washers: H-070 (2)

Breather Bolt O-Rings (2pack): H-024

Manifold Spacer: 18-492-2

Throttle Body Gasket: 18-500-5

Throttle Body Hardware, 1/4-20 x 3/4: H-656Z (3)

17-UP M8 MODELS

Backing Plate: 81-015-1C

Breather Bolts: 18-457-4C

Breather Bolt Copper Washers: H-070 (2)

Breather Bolt O-Rings (2pack): H-024

Throttle Body Gasket: 18-457-3

Throttle Body Hardware, 1/4-20 x 3/4: H-656Z (3)

M8 Throttle Body Badge: 18-203-8

M8 Servo Cover: 81-016-1B

Stainless Steel Washers: H-338S(3)

6-32 X ¼ Sockethead: H-507Z (3)

ELBOW & FILTER ASSEMBLY

Intake Elbow: 600-029-1C

Intake Elbow Hardware: H-654ZB (3)

Velocity Performance Air Filter: 81-200-3

Filter Logo Badge: 18-920-2B

99-17 TWIN CAM (EXCEPT: FBW) 

• 2001-2017 Twin Cam Delphi EFI (Fuel Injected)
• 1999-2006 Twin Cam CV Carb
• *NOTE: Will not fit Fly-By-Wire Models: 08-17 FLT Touring  / 16-17 Softail / 16-17 Dyna FXDLS & 99-01 F.I. FLT 

 08-16 TOURING / 16-17 SOFTAIL  (FBW)

• 2008-2016 FLT Touring / Bagger - FLHT / FLHR / FLHX / FLTR / H-D FL Trike 
• 2016-2017 Softails 
• 2016-2017 Dyna FXDLS 
• 2014-2015 FLSTNSE / 13-14 FXSBSE / 11-12 FLSTSE
• *NOTE: Twin Cam models equipped w/ FBW (Fly-by-Wire or Throttle-by-Wire) 

 91-UP XL SPORTSTER 

• 1991-up Sportster 883 / 1200  with CV Carb or Delphi EFI 

17-2023 M8 MODELS (EXCEPT: 2023 FLHXSE & FLTRXSE)  

• 2017-up FLT Touring / Bagger - FLHT / FLHR Road King / FLHX Street Glide / FLTR Road Glide
• 2018-up Softail Models 

FITMENT DISCLAIMER

Fitment information is provided as a general reference only and is not guaranteed for any motorcycle, whether stock or modified. Compatibility may vary by year, model, and individual configuration.

Customers are responsible for verifying fitment prior to purchase. House of Harley-Davidson assumes no liability for purchases made based on incorrect or unverified fitment information.

Please TEXT 414-282-2211 with any questions before ordering, or use the chat below.