Radium Engineering Fluid Lock Catch Can Kit – BMW 135i/335i/535i N54

This Radium Engineering catch can kit is designed specifically for BMW models equipped with the N54 engine. It is a fully sealed, emissions-compliant system that mounts cleanly to the OEM power steering reservoir bracket with no cutting or drilling required.

Vehicle Compatibility:

• BMW 135i (N54)

• BMW 335i (N54)

• BMW 535i (N54)

Overview:
The Radium closed-loop catch can system captures oil-laden crankcase vapors before they re-enter the intake stream, helping maintain cleaner combustion and protecting engine components from oil buildup. This is especially critical on turbocharged vehicles where blow-by and oil ingestion are common during aggressive driving.

Key Features:

• Helps increase effective octane by removing oil from intake charge

• Prevents oil accumulation in intercooler, intake manifold, throttle body, etc.

• Fully sealed design – emissions and track legal

• Promotes negative crankcase pressure for improved performance

• Stainless steel internal baffling is reusable and easy to clean

• Integrated dipstick for fluid level inspection

• Constructed from anodized billet aluminum

Specifications:

• Capacity: 7 fluid ounces

• Height (without fittings): 5 inches

• Outside diameter: 2.45 inches