Air Cleaner Assembly, for IDF & HPMX, 4.5x7 Oval, 6 Tall

OVERVIEW

When you are pushing your air-cooled engine to the limit with a dual-carburetor setup, airflow is the lifeblood of your performance. This EMPI Air Cleaner Assembly is specifically engineered for high-output Weber IDF and EMPI HPMX carburetors, providing a massive 6-inch tall profile that ensures your engine never gasps for air. The extra height significantly increases the surface area of the filter media compared to standard 3.5-inch or 4-inch units, allowing for a higher volume of clean, laminar air to enter the venturis. This is the ideal solution for large-displacement stroker engines or high-revving street-strip machines where every cubic foot of air counts toward your total horsepower and torque figures. The brilliant chrome-plated top and bottom plates not only provide a rigid structure to prevent vacuum leaks but also add a show-quality shine to your engine bay that demands attention at every local meet.

Beyond the raw performance gains, this assembly is built for durability and long-term serviceability in the harsh environment of an air-cooled engine compartment. The washable gauze element is designed to trap microscopic debris without creating a restrictive pressure drop, ensuring your internal engine components remain protected from scoring and premature wear. Whether you are running a classic Beetle, a rugged sand rail, or a sleek Karmann Ghia, the 4.5x7-inch oval footprint provides a stable mounting platform that clears most linkage configurations. This kit comes complete with all necessary hardware to secure the plates to your carburetor flange, making it a straightforward upgrade for anyone looking to maximize the efficiency of their dual-carb induction system. Don''t let a restrictive, undersized filter choke out the potential of your performance build; give your HPMX or IDF carbs the breathing room they deserve with this heavy-duty, high-flow assembly.

FITMENT

This air cleaner assembly is designed for dual-carburetor applications and fits the following models and carburetor types:

• Carburetor Compatibility: Weber IDF series (40, 44, 48), EMPI HPMX series, and Dellorto DRLA series.
• Volkswagen Type 1: Beetle, Super Beetle, and Karmann Ghia (Note: 6-inch height may require decklid stand-offs for clearance).
• Volkswagen Type 2: Bus, Transporter, and Kombi (Check overhead clearance in engine bay).
• Volkswagen Type 3: Squareback, Fastback, and Notchback (Custom clearance usually required).
• Off-Road: Dune Buggies, Sand Rails, Manx-style bodies, and Baja Bugs with open engine compartments.
• Kit Cars: Any custom application utilizing the standard IDF/HPMX mounting flange.

SPECS

• Part Number: A1005 / AC126608
• Overall Height: 6 Inches (High-Flow Performance Profile)
• Width: 4-1/2 Inches (Short Dimension)
• Length: 7 Inches (Long Dimension)
• Filter Shape: Oval
• Filter Media: High-Flow Washable Cotton Gauze
• Plate Material: Stamped Steel with High-Lustre Chrome Finish
• Base Plate Design: Pre-cut for IDF / HPMX / DRLA Mounting Flange
• Components Included: Chrome Top Plate, Chrome Base Plate, Gauze Element, and Assembly Hardware

PRO TIPS

Pro Tip 1: Always Oil Your Element. While these gauze filters look great out of the box, they require proper air filter oil to function as a true filtration barrier. Before installation, apply a uniform coat of high-quality red filter oil to the gauze. This oil is what actually traps the fine dust and grit common in air-cooled environments. Without the oil, you are essentially running a screen that only stops large rocks, which can lead to premature cylinder and ring wear. Allow the oil to wick for 20 minutes before starting the engine to avoid pulling excess oil into the carburetor jets.

Pro Tip 2: Measure Your Clearance Twice. A 6-inch tall air cleaner is significantly taller than the standard 3.25-inch or 4-inch versions. If you are running a standard Beetle decklid without stand-offs, or a Type 3 with a stock engine cover, you may encounter interference. For Beetle owners, we highly recommend using decklid stand-offs to provide the necessary vertical room and to help pull more cool air into the intake. For buggy and sand rail owners, this height is perfect for getting the intake inlet higher out of the dust cloud generated by the tires.

Pro Tip 3: Check Your Linkage Alignment. When installing taller air cleaners, always cycle your throttle linkage by hand before starting the vehicle. Ensure that the crossbar or hex-bar linkage arms do not strike the bottom of the air cleaner base plate or the filter element itself at Wide Open Throttle (WOT). If you experience contact, you may need to slightly adjust the height of your linkage down-rods or use a small spacer. Ensuring a snag-free throttle return is critical for both performance and safety on the road or the trail.