• Holley 120-521 primary image
  • Holley 120-521 image 2
  • Holley 120-521 image 3
  • Holley 120-521 image 4
  • Holley 120-521 image 5
  • Holley 120-521 image 6
  • Holley 120-521 image 7
  • Holley 120-521 image 8
  • Holley 120-521 image 9
  • Holley 120-521 image 10
1 / 1
Holley

Holley RetroFilter Drive-By-Wire Air Cleaner - 14-Inch Diameter - Dual Snorkel - Black

£285.06 GBP inc VAT £356.34 GBP
Shipping calculated at checkout.
SKU: 120-521

In Stock

UK warehouse: 0

US warehouse: 21

Delivery ETA: Jan 08 – Jan 13
US warehouse
Ships from our US warehouse.
Price shown is final for UK customers - duties & VAT included. No extra fees.
Build check

Is this right for your build?

Unsure if this is the right choice for your car or project? The Billy's team can check fitment, supporting parts and make recommendations before you purchase.

This message will include the product details and SKU you are currently viewing so we can talk about the exact parts in front of you.

Email my build details

We regularly support complex conversions and high value engine and driveline packages. If anything in your plan looks like it wont fit or incomplete, we will highlight it and suggest alternatives.

View details
  • Holley 120-521 primary image
  • Holley 120-521 image 2
  • Holley 120-521 image 3
  • Holley 120-521 image 4
  • Holley 120-521 image 5
  • Holley 120-521 image 6
  • Holley 120-521 image 7
  • Holley 120-521 image 8
  • Holley 120-521 image 9
  • Holley 120-521 image 10
1 / 1
Press & drag to view

Product Details

🔧

Vehicle Compatibility

Fits Holley RetroFilter Drive-By-Wire Air Cleaner - 14-Inch Diameter - Dual Snorkel - Black.

Please refer to manufacturer specifications for complete compatibility information.

⭐

Key Features

Fits LS3-Style DBW Throttle Body - Cotton Gauze Element
  • 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
🎬

Product Videos

No videos available for this product.

📋

Product Specifications

Base Color
Black
Base Gasket Included
No
Base Style
4150
Brand
Holley
Configuration
Multi Piece
Diameter
14 IN
Filter Color
Red
Filter Diameter
14 in.
Filter Type
Cotton Gauze
Flange Gasket Included
Yes
Grade Type
Performance
Housing Color
Black
Housing Surface Type
Smooth
Lid Color
Black
Lid Gasket Included
Yes
Lid Style
Plain
Marine Approved
No
Menu
Carburetion
Mounting Hole Quantity
4
Nut Included
Yes
Part Type
Air Cleaner Assembly
Product Type
Air Cleaner
Shape
Round
Size
14 in.
Snorkel Quantity
2
Snorkel Shape
Oval
Stud Included
Yes
Washable/Reusable Filter
Yes
📦

Package Contents

Kit includes all necessary components. Please refer to manufacturer specifications for detailed package contents.

Related Products

Billy's