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Holley RetroFilter Drive-By-Wire Air Cleaner - 16-Inch Diameter - Black

Part # 120-501 Be the first to write a review

Fits LS3-Style DBW Throttle Body - Cotton Gauze Element

Holley RetroFilter Drive-By-Wire Air Cleaner - 16-Inch Diameter - Black

Estimated Ship Date: 06/30/2025
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$211.95
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Emissions

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

See Emissions Details

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RetroFilter air cleaners cleverly hide an LS drive-by-wire throttle body inside to maintain a low height and classic looks. Utilizing a hidden opening in the base to hide unsightly wiring from the throttle body, this trick air cleaner allows you to experience all the benefits of modern technology and keep the vintage look you want. Pair with any Holley intake manifold with a 4150/4160 square bore flange for maximum aesthetics and performance. The opening is 92mm but any 4-bolt pattern LS throttle body will physically fit. We recommend the LS2/LS3/LS7 style but the L33, L76, and L92 should also fit. *Requires adapter to connect to 4150/4160 square bore flange style manifold - Holley EFI part # 17-93 is recommended. All part numbers in this series: 120-500 - 16-Inch DBW Air Cleaner - Chrome 120-501 - 16-Inch DBW Air Cleaner - Black 120-520 - 14-Inch Dual Snorkel DBW Air Cleaner - Chrome 120-521 - 14-Inch Dual Snorkel DBW Air Cleaner - Black

Features:

  • Allows full EFI functionality stealthily hidden within a traditional looking air cleaner package
  • Each kit includes a 3-inch tall, pre-oiled, washable and reusable premium cotton gauze filter element
  • Available in Black and Chrome finishes
  • Adapts to LS style drive-by-wire throttle bodies found on the LS2, LS3, LS7, etc.
  • Can be installed on any vehicle running a top mounted 4150/4BBL EFI capable intake manifold with LS3 DBW wiring components
  • Stamped aluminum lid and base for optimal durability and light weight

About Holley

Holley Performance Brands is the undisputed leader in carburetors, fuel pumps, fuel injection, intake manifolds, fuel injection, and fuel systems.

Base ColorBlack
Base Gasket IncludedNo
Base MaterialAluminum
Base Style4150
Brand Holley
CategoryAir and Fuel Delivery
ConfigurationMulti Piece
Diameter16 IN
Emission Code5
Filter ColorRed
Filter Diameter16"
Filter Height3"
Filter MaterialCotton Gauze
Filter TypeCotton Gauze
FinishBlack
Flange Gasket IncludedYes
Grade TypePerformance
Height3 IN
Housing ColorBlack
Housing MaterialAluminum
Housing Surface TypeSmooth
Lid ColorBlack
Lid Gasket IncludedYes
Lid MaterialAluminum
Lid StylePlain
Marine ApprovedNo
MaterialAluminium
Mounting Hole Quantity4
Nut IncludedYes
Part TypeAir Cleaner Assembly
Product TypeAir Cleaner
ShapeRound
Size16"
Stud IncludedYes
Sub CategoryCarburetion
WarrantyManufacturer's Limited 90 Day Warranty
Washable/Reusable FilterYes
UPC090127108840
Part Number120-501
5

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
Instructions - 199r10818.pdf
Instructions - 199r12336.pdf
While some Gen V LT DBW throttle bodies may share the same bolt pattern, they will not fit properly.
Manufacturer's Limited 90 Day Warranty: See Details

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    Some parts are not legal for use in California or other states with similar regulations.