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56-9158
$49.99 USD
MSRP $77.59 35.6% Off
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K&N 56-9158

Custom Assemblies > Custom Racing Assembly
  • Designed to increase horsepower and acceleration
  • Show quality with custom chrome top and base
  • Washable and reusable air filter
  • High air flow with excellent filtration
  • One year limited warranty
K&N Custom Air Filters for Single or Two Barrel Carburetors - K&N custom air filter kits are designed to boost performance from your carburetor while keeping the dirt on the outside where it belongs. These assemblies come with custom chrome top and base plates and the famous K&N High-Flow Washable Air Filter.

[More Information on Custom Air Filters for Single or Two Barrel Carburetors]

Product Specifications

Air Filter ColorRed
Air Filter Height2.469 in (63 mm)
Air Filter Inside Diameter5.344 in (136 mm)
Air Filter Large End Diameter6.375 in (162 mm)
Air Filter MaterialCotton Gauze
Air Filter Outlet ShapeRound
Air Filter ShapeRound Tapered
Base Inside Diameter5.344 in (136 mm)
Base Outside Diameter6.375 in (162 mm)
Clamp MaterialNo Clamps Required
Clamp StyleNo Clamps Required
Clamps IncludedNo Clamps Included
ColorRed
Filter MaterialCotton Gauze
FlangesNone
Height2.469 in (63 mm)
Inlet Diameter5.344 in (136 mm)
Inner WireNo
Mounting Hardware IncludedYes
Neck Flange5.344 in (136 mm)
Overall Height2.469 in (63 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height3.5 in (89 mm)
Product Box Length6.56 in (167 mm)
Product Box Width6.31 in (160 mm)
Product StyleCustom Assemblies
Replacement FilterNone
Size6-9
StyleRound
Top Inside Diameter4.469 in (114 mm)
Top Material/FinishChrome
Top Outside Diameter5.75 in (146 mm)
Top StyleOpen
Weight1 lb (0.4 kg)

Customer Feedback

I have always been pleased with K&N products, for my vehicles. I have not been able to make the 1 Mil. mile claim yet, but I'm working on it. I would like to see more products for foreign made auto models, such as Audi, Mercedes Benz, etc. Such things as Cold Air Intake Systems, not just filters.

DJ Ehrlich
Rincon, Georgia
Quality product, fair price, and quick delivery made this purchase a win win. I love driving a BMW and I love not paying the dealer to change my oil. I will be ordering again.

Jonathan Forrest
Vermont
The filters were easy to install thanks to the included instructions. They work great and seem to have quieted the fan noise a bit. It will be awhile before I use the cleaning kit but I sure do like the top quality of these filters. I am purchasing a new car in June and already have the part numbers for the engine air filter as well as the in cabin filter. I have a 2013 3series BMW and would love to have an in cabin filter for it.

Stew Smith
San Diego, California