Fuel & Air

Arlen Ness #18-992 - Inverted Series Air Cleaner Kit - Chrome

For '01-'17 Twin Cam Delphi EFI and '99-'06 Twin Cam CV carb models.FeaturesForged billet aluminum backing plate features Big Sucker™ hidden breather technology and a radius air inlet for smooth airflowForged billet air filter covers feature exposed...

Arlen Ness #18-993 - Inverted Series Air Cleaner Kit - Black

For '01-'17 Twin Cam Delphi EFI and '99-'06 Twin Cam CV carb models.FeaturesForged billet aluminum backing plate features Big Sucker™ hidden breather technology and a radius air inlet for smooth airflowForged billet air filter covers feature exposed...

Arlen Ness #18-994 - Inverted Series Air Cleaner Kit - Chrome

Will fit '88-'90 models also; breather system is not applicable for these model years.FeaturesForged billet aluminum backing plate features Big Sucker™ hidden breather technology and a radius air inlet for smooth airflowForged billet air filter covers...

Arlen Ness #18-995 - Inverted Series Air Cleaner Kit - Black

Will fit '88-'90 models also; breather system is not applicable for these model years.FeaturesForged billet aluminum backing plate features Big Sucker™ hidden breather technology and a radius air inlet for smooth airflowForged billet air filter covers...

Arlen Ness #18-996 - Inverted Series Air Cleaner Kit - Chrome

Inverted Series Air Cleaner Kit - ChromeFeaturesForged billet aluminum backing plate features Big Sucker™ hidden breather technology and a radius air inlet for smooth airflowForged billet air filter covers feature exposed design and a CNC inverted top...

Arlen Ness #18-997 - Inverted Series Air Cleaner Kit - Black

Inverted Series Air Cleaner Kit - BlackFeaturesForged billet aluminum backing plate features Big Sucker™ hidden breather technology and a radius air inlet for smooth airflowForged billet air filter covers feature exposed design and a CNC inverted top...

Arlen Ness #18-998 - Clear Tear Air Cleaner Kit - Black

Will Fit '88-'90 models also; breather system is not applicable for these model years.FeaturesThe Clear Tear air cleaner series brings the timeless teardrop shape to a new levelRadius window can be installed in both the front or back facing direction...

Arlen Ness #18-999 - Clear Tear Air Cleaner Kit - Black

Clear Tear Air Cleaner Kit - BlackFeaturesBreather design is O-ringed at the heads, passes through the backing plate and exits inside the mouth of the throttle body through proprietary shooter tubesRadius window can be installed in both the front or back...

Arlen Ness #50-291 - Big Sucker™ Stage I Air Filter Kit - Black

For '01-'17 Twin Cam Delphi EFI and '99-'06 Twin Cam CV carb models.FeaturesEach hidden breather is O-ringed at the heads and exits at the mouth of the injector/carb to provide efficient engine breathing, eliminating the need for any external hoses or...

Arlen Ness #50-330 - Big Sucker™ Stage I Air Filter Kit - Chrome

Big Sucker™ Stage I Air Filter Kit - ChromeFeaturesEach hidden breather is O-ringed at the heads and exits at the mouth of the injector/carb to provide efficient engine breathing, eliminating the need for any external hoses or hardwareRadius air inlet...

Arlen Ness #50-331 - Big Sucker™ Stage I Air Filter Kit - Chrome

For '01-'17 Twin Cam Delphi EFI and '99-'06 Twin Cam CV carb models.FeaturesOne-Piece aluminum backing plate with hidden breather technologyEach hidden breather is O-ringed at the heads and exits inside the mouth of the throttle body for a virtually...

Arlen Ness #50-334 - Big Sucker™ Stage I Air Filter Kit - Chrome

Will Fit '88-'90 models; breather system is not applicable for these model years.For '91-'22 XL models with CV carb or Delphi EFI.FeaturesEach hidden breather is O-ringed at the heads and exits at the mouth of the injector/carb to provide efficient...

Arlen Ness #50-335 - Big Sucker™ Stage I Air Filter Kit - Wrinkle Black

Big Sucker™ Stage I Air Filter Kit - Wrinkle BlackFeaturesEach hidden breather is O-ringed at the heads and exits at the mouth of the injector/carb to provide efficient engine breathing, eliminating the need for any external hoses or hardwareRadius air...

Arlen Ness #50-336 - Big Sucker™ Stage I Air Filter Kit - Wrinkle Black

For '01-'17 Twin Cam Delphi EFI and '99-'06 Twin Cam CV carb models.FeaturesOne-Piece aluminum backing plate with hidden breather technologyEach hidden breather is O-ringed at the heads and exits inside the mouth of the throttle body for a virtually...

Arlen Ness #50-339 - Big Sucker™ Stage I Air Filter Kit - Wrinkle Black

Will Fit '88-'90 models; breather system is not applicable for these model years.For '91-'22 XL models with CV carb or Delphi EFI.FeaturesEach hidden breather is O-ringed at the heads and exits at the mouth of the injector/carb to provide efficient...

Arlen Ness #50-514 - Big Sucker™ Air Filter Kit - Chrome - Stage I

Accepts Arlen Ness® Stage 1 Custom Covers.Accepts most factory single-bolt air cleaner covers (check for proper fitment, factory cover specific fitment air cleaner kits are available).FeaturesEach hidden breather is o-ringed at the heads and exits at the...

Arlen Ness #50-515 - Big Sucker™ Air Filter Kit - Chrome - Stage I

Accepts OEM covers.FeaturesEach hidden breather is o-ringed at the heads and exits at the mouth of the injector/carb to provide efficient engine breathing, eliminating the need for any external hoses or hardwareRadius air inlet provides maximum...

Arlen Ness #50-518 - Big Sucker™ Air Filter Kit - Chrome - Stage I

Will fit '88-'90 models also; breather system is not applicable for these model years.Accepts Arlen Ness® Stage 1 Custom Covers.Accepts most factory single-bolt air cleaner covers (check for proper fitment, factory cover specific fitment air cleaner kits...

Arlen Ness #50-570 - Big Sucker™ Air Filter Kit - Black - Stage I

Accepts Arlen Ness® Stage 1 Custom Covers.Accepts most factory single-bolt air cleaner covers (check for proper fitment, factory cover specific fitment air cleaner kits are available).FeaturesEach hidden breather is o-ringed at the heads and exits at the...

Arlen Ness #50-571 - Big Sucker™ Air Filter Kit - Black - Stage I

Accepts OEM covers.FeaturesEach hidden breather is o-ringed at the heads and exits at the mouth of the injector/carb to provide efficient engine breathing, eliminating the need for any external hoses or hardwareRadius air inlet provides maximum...

Arlen Ness #50-574 - Big Sucker™ Air Filter Kit - Black - Stage I

Will fit '88-'90 models also; breather system is not applicable for these model years.Accepts Arlen Ness® Stage 1 Custom Covers.Accepts most factory single-bolt air cleaner covers (check for proper fitment, factory cover specific fitment air cleaner kits...

Arlen Ness #50-820 - Big Sucker™ Stage II Air Filter Kit - Wrinkle Black

For '01-'17 Twin Cam Delphi EFI and '99-'06 Twin Cam CV carb models.FeaturesFeatures a one-piece aluminum backing plate/carb support bracket with hidden breather technologyBreather passages exit at the mouth of the carburetor/throttle body, creating a...

Arlen Ness #50-835 Big Sucker Stage I Air Filter Kit - Gloss Black

Big Sucker Stage I Air Filter Kit — Slot Track Each hidden breather is O-ringed at the heads and exits at the mouth of the injector/carb to provide efficient engine breathing, eliminating the need for any external hoses or hardware Radius air inlet...

Arlen Ness #50-836 - Big Sucker™ Stage I Air Filter Kit - Gloss Black

For '01-'17 Twin Cam Delphi EFI and '99-'06 Twin Cam CV carb models.FeaturesEach hidden breather is O-ringed at the heads and exits at the mouth of the injector/carb to provide efficient engine breathing, eliminating the need for any external hoses or...