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56-9128
$49.99 USD
MSRP $77.09 35.2% Off
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K&N 56-9128

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 Height1.75 in (44 mm)
Air Filter Inside Diameter4.875 in (124 mm)
Air Filter MaterialCotton Gauze
Air Filter ShapeRound
ColorRed
Filter MaterialCotton Gauze
Inlet Diameter1.375 in (35 mm)
Mounting Hardware IncludedYes
Neck Flange1.375 in (35 mm)
Overall Height2 in (51 mm)
Product Box Height6.56 in (167 mm)
Product Box Length3.5 in (89 mm)
Product Box Width6.31 in (160 mm)
Product StyleCustom Assemblies
Replacement FilterE-3211
Size6-8
StyleRound
Top Material/FinishChrome
Top StyleMetal
Weight1.1 lb (0.5 kg)

Customer Feedback

I purchased the 57i MPI Induction Kit for my 1998 Rover Mini. The sound is great and definitely sets my little Mini apart from the rest! With already 45mpg, I didn't buy this kit for the gas mileage, I knew the great products that K&N makes. Definitely more power on the Autobahn, barely getting to 140kph (84mph) before, I can now go 160kph (96mph) easy! Love the product! Thank you!

P.S. I also have pictures of the installed filter and hoses if interested. Thanks again, Mike Watson

Mike Watson
Ramstein AB, Germany
The air filter I bought from the K & N range made an unbelievable difference to my Land Rover Discovery in noticeable performance. (Hard to judge any fuel saving as the vehicle is always towing other vehicles out of trouble.) Buying the filter was very easy, no sucking air through the teeth or grunting, just a person who understood the product and easily identified the filter I needed.

Paul Start
Essex, United Kingdom
I have a Land Rover discovery 2004 and have always suffered with it hanging back until the rev counter reached the 1500 mark. I was advised to install a K&N air filter, and what a difference. The whole performance across the range showing improvement.

Paul Start
Saffron, Walden