Keep Oil Out of Your N54 BMW Air Intake System
It’s no secret that N54 BMW turbo motors suffer from oil control issues. Excess oil can blow through the system, coating the intercooler and charge piping, fouling intake valves and the VANOS system, lowering effective octane, and degrading overall performance. The higher the boost level, the more pronounced these problems become.
The solution is the BMS N54 Oil Catch Can. Many competing catch cans fall short due to poor mounting locations, restrictive internal designs, undersized hoses, or vented PCV systems that release crankcase vapors into the atmosphere. Others are simply repurposed designs intended for lower-output engines.
To solve these issues, BMS designed this oil catch can system from the ground up specifically for turbocharged BMW applications. It features 100% CNC-machined construction with zero welding for a precise fit and long service life. Oversized hoses maintain factory-plus flow throughout the entire system to prevent crankcase pressure buildup, while retaining full closed-loop OEM PCV operation.
The mounting location minimizes hose length, improves condensation efficiency, and maintains a clean, stealth appearance. Installation takes approximately 20 minutes, includes all required hardware, and is fully reversible. Oil can be drained via the threaded base or optional drain plug during routine oil changes.
Made in the USA and guaranteed for the life of the vehicle.
A transparent oil catch can base is available as an option or sold separately as an upgrade here.
Features & Benefits
- Increases air intake efficiency
- Promotes engine longevity
- Non-clogging triple-baffle air/oil separation
- Free-flow, zero-restriction design
- Retains factory fully closed-loop PCV operation
- Large-diameter inlet and outlet with no tapering
- High-flow design prevents crankcase pressure buildup
- Precision CNC-machined from high-grade aluminum
- Anodized black finish
- Stealth mounting on the cool side of the engine
- N54 models mount out of sight under the cowl
- Made in the USA and guaranteed for life
Service is simple. Unscrew the base every 3–6 months to empty, or use the optional 1/8" NPT drain plug.
Vehicle Fitment
BMW 1 Series
- 2008–2010 N54 E82 BMW 135i Coupe
- 2008–2010 N54 E88 BMW 135i Convertible
- 2011 N54 E82 BMW 1M
BMW 3 Series
- 2006–2010 N54 E90 BMW 335i Sedan (including xDrive)
- 2006–2010 N54 E91 BMW 335i Touring (including xDrive)
- 2006–2013 N54 E92 BMW 335i / 335is Coupe (including xDrive)
- 2007–2010 N54 E93 BMW 335i Convertible (including xDrive)
For 2011+ BMW 335i models with the N55 engine, use the BMW N55 E-Chassis Oil Catch Can.
BMW 5 Series
- E60 / E61 535i / 535xi
View BMW 5 Series N54 Oil Catch Can
Catch Can Dimensions & Specifications
- Overall height with lid: 4.4 in (111 mm)
- Can diameter: 2.5 in (63.7 mm)
- Lid length (back to nozzle): 4.0 in (101 mm)
- Nozzle outer diameter: 0.75 in (19.2 mm)
- Nozzle inner diameter: 0.669 in (17 mm)
- Fluid capacity: up to 5.5 fl oz (162.6 mL)
Transparent Catch Can Base Option
The transparent base allows you to quickly check oil level, contamination, and sludge buildup without removing the can.
⚠️ Attention: This product may not be suitable for use in regions where temperatures frequently drop to 32°F (0°C) or below.
