Radium 20-0336-FL Catch Can Kit for 1990-2005 Mazda Miata MX-5

Vehicle Fitment

• 1990-1997 Mazda Miata MX-5 (1.6L/1.8L I4, RWD)
• 1999-2005 Mazda Miata MX-5 (1.6L/1.8L I4, RWD)

Features

• High-quality closed-loop oil catch can to trap oil vapors and sludge
• Radium Fluid Lock design with O-ring sealed dipstick for easy inspection
• Large 10AN ORB inlet ports and 4AN ORB drain port for robust flow
• Two-step internal oil separation baffling for improved efficiency
• Prevents oil build-up in intake, throttle body, and intercooler components
• Helps maintain cleaner inlet air and may improve engine performance
• Closed system promotes negative crankcase pressure for optimal breathing
• No permanent modifications - installs using existing mounting points
• Durable anodized finish and quality hardware included

Specifications

• Part Type: Single oil catch can kit
• Catch Can Volume: Approx. 7 fl oz (~207 mL)
• Inlet Port Size: 10AN ORB
• Drain Port Size: 4AN ORB
• Sealed Dipstick: O-ring sealed for fluid level checks
• Mounting: Uses OEM holes - no cutting or drilling required
• System Type: Closed-loop (prevents vapors entering cabin)
• Emissions Note: Not legal for street use in some regions without emissions control compliance

Included Components

• 1x Radium Fluid Lock catch can
• 1x Mounting bracket
• Hose and fittings for PCV/crankcase connections
• Dipstick assembly
• All required mounting hardware

Product Description

The Radium Engineering 20-0336-FL Catch Can Kit is a premium engine ventilation upgrade designed specifically for Mazda Miata MX-5 models from 1990 through 2005. This closed-loop catch can captures oil vapors and sludge from the crankcase ventilation and PCV system before they can re-enter the intake tract, helping keep the intake system, throttle body, and valves cleaner under performance or high-load driving conditions.

Featuring Radium's Fluid Lock design with O-ring sealed dipstick for easy fluid inspection and service, large AN-style fittings, and effective two-stage baffling, this single catch can kit installs using the existing mounting points without cutting or drilling. It's an excellent solution for enthusiasts seeking improved engine breathing and reduced oil contamination in their Mazda Miata's intake system. Please be aware that, depending on local regulations, this closed-loop catch can may not be street legal in emissions-regulated areas without proper compliance.