EVIL ENERGY 300ML Baffled Oil Catch Can — Aluminum Air-Oil Separator with Breather Filter, 5ft 3/8" NBR Hose

EVIL ENERGY's 300ML baffled oil catch can is an aluminum air-oil separator that captures crankcase oil and moisture before it reaches the intake, helping reduce carbon deposits and preserve engine cleanliness.

This compact, universally compatible 300 milliliter catch can is built from lightweight aluminum and includes a removable baffled insert, steel-ball enhancement option and a breather filter so you can configure it for either vented or sealed PCV setups. The kit arrives with a durable 5ft NBR hose (3/8" ID) and M16*1.5 threaded inlet/outlet fittings, offering a flexible installation for many gasoline engines. It’s designed to be a practical, serviceable solution to trap oil mist and moisture that contribute to fouling of intake valves and combustion chambers.

How does this catch can stop oil and moisture from reaching the intake?

The internal baffled chamber forces blow-by gases to change direction repeatedly, causing oil droplets and water vapor to coalesce and fall out of the airflow. You can increase separation efficiency by adding the included steel balls to the removable baffle for additional impingement surfaces. Collected liquid settles in the 300ml reservoir for periodic draining instead of recirculating into the intake tract.

• Removable baffle improves condensate capture and simplifies cleaning
• Optional steel-ball fill increases surface area for coalescing oil
• 300ml reservoir size balances compact fit with practical capacity
• Aluminum housing resists corrosion and stays lightweight

Can I run this catch can as a sealed unit or with a breather filter?

Yes — the EVIL ENERGY catch can is configurable for both pre-PCV venting and in-line PCV installation. Fit the included breather filter when you need a crankcase vent, or remove it and install the can inline between PCV hoses to act as a sealed separator. Choose the configuration that matches your vehicle’s ventilation scheme and emissions requirements.

• Breather filter option for venting to atmosphere on pre-PCV setups
• Inline use without breather for sealed PCV systems
• M16*1.5 threaded ports for standard fittings and airtight seals
• Professional installation recommended for correct routing and sealing

What hoses, fittings and measurements should I check before buying?

This is a universal kit but not vehicle-specific — confirm your hose inner diameter and available mounting space before ordering. Measure the original PCV or vent hose ID and compare to the kit’s 3/8" (ID) hose; verify that the M16*1.5 threads are compatible with your existing fittings or adapter options. Plan for a secure bracket location that keeps the can accessible for regular inspection and draining.

• Included hose: 5ft NBR, 3/8" ID, 5/8" OD for flexibility and heat resistance
• Measure original hose ID and available mounting clearance first
• Check thread compatibility or obtain adapters if necessary
• Allow space for periodic draining and cleaning access

How should I maintain the catch can to avoid problems in cold weather?

Moisture collected in the can can freeze in sub-zero conditions and risk blockage; weekly checks help avoid that. Empty the reservoir regularly and inspect hoses and fittings; in freezing climates consider reinstalling the factory PCV hose when temperatures remain below freezing or keep the can drained more frequently. Regular service preserves flow and prevents buildup that could affect crankcase ventilation.

• Inspect and drain weekly in cold or humid environments
• Clean the removable baffle and interior periodically to restore efficiency
• Reinstall original PCV routing if persistent freezing occurs
• Use supplied NBR hose for its wear and heat-resistant properties

Who is this for: The EVIL ENERGY 300ML baffled oil catch can is aimed at DIY enthusiasts, tuners and vehicle owners who want a compact, serviceable solution to reduce oil contamination of the intake system. It suits many gasoline engines where inlet space is limited but separation performance is still desired; verify hose size and thread compatibility before purchase and consider professional installation if you’re unsure about routing or sealing.