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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
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

Be the first to review part 56-9158
Absolutely love it! Can hear the sound easily. I straight piped my camaro after it and it sounds like a BMW M6. Would recommend to anyone, took almost an hour to put it in, fits right in place. Turns heads everywhere I go.

Jay
Tallahassee, Florida
I bought this filter for my brothers 328i BMW and just like every other K&N filter I've purchased, it's solid. The Germans recommend changing the oil every 10,000 miles and so this filter is perfect. After changing the oil and installing the filter, the car rides smooth. Thanks I've been a customer for a while and you will continue to have my support.

Sergio
Los Angeles, California
Fits better than stock filter. Definitely noticed more power and slight increase in throttle response on my turbocharged BMW 335i. Faster spool up and noticeably harder pulls under full throttle. I've been using K&N filters on my turbocharged cars for 15 years, always with the same results. Best performance filters on the market.

Mike S
Massachusetts