Holley 120-521 - Dual Snorkel - Black Fits LS3-Style DBW Throttle Body

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Description

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 4150/4610 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

Specifications

Base Colour	Black
Base Gasket Included	No
Base Material	Aluminum
Base Style	4150
Brand	Holley
Configuration	Multi Piece
Diameter	14
Emission Code	3
Filter Colour	Red
Filter Diameter	14 in.
Filter Height	3"
Filter Material	Cotton Gauze
Filter Type	Cotton Gauze
Finish	Black
Flange Gasket Included	Yes
Grade Type	Performance
Height	3
Housing Colour	Black
Housing Material	Aluminum
Housing Surface Type	Smooth
Lid Colour	Black
Lid Gasket Included	Yes
Lid Material	Aluminum
Lid Style	Plain
Marine Approved	No
Material	Aluminium
Mounting Hole Quantity	4
Nut Included	Yes
Product Type	Air Cleaner
Sale Category	Air and Fuel Delivery
Shape	Round
Size	14 in.
Snorkel Quantity	2
Snorkel Shape	Oval
Stud Included	Yes
Warranty	Limited 90 Day
Washable/Reusable Filter	Yes

Compatibility

Universal Part

Description
Specifications

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

Base Colour	Black
Base Gasket Included	No
Base Material	Aluminum
Base Style	4150
Brand	Holley
Configuration	Multi Piece
Diameter	14
Emission Code	3
Filter Colour	Red
Filter Diameter	14 in.
Filter Height	3"
Filter Material	Cotton Gauze
Filter Type	Cotton Gauze
Finish	Black
Flange Gasket Included	Yes
Grade Type	Performance
Height	3
Housing Colour	Black
Housing Material	Aluminum
Housing Surface Type	Smooth
Lid Colour	Black
Lid Gasket Included	Yes
Lid Material	Aluminum
Lid Style	Plain
Marine Approved	No
Material	Aluminium
Mounting Hole Quantity	4
Nut Included	Yes
Product Type	Air Cleaner
Sale Category	Air and Fuel Delivery
Shape	Round
Size	14 in.
Snorkel Quantity	2
Snorkel Shape	Oval
Stud Included	Yes
Warranty	Limited 90 Day
Washable/Reusable Filter	Yes

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Holley - Dual Snorkel - Black Fits LS3-Style DBW Throttle Body - Cotton Gauze Element

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