AIRTEC Motorsport BMW N55 Oil Catch Can / Catch Tank Crankcase Breather & PCV Oil Separator Kit - M135i M235i M2 (Non-Competition) F20 F21 F22 F87 | Baffled, Direct-Fit, Dipstick, Billet Bracket

AIRTEC Motorsport crankcase oil separation kit for BMW N55 engines in the M135i, M235i and M2 non-Competition. This premium breather solution traps oil mist and blow-by from the PCV system before it reaches the intake, helping keep inlet valves, pipework and intercooler cleaner on fast road and track cars. A smart, bolt-on upgrade for anyone who wants smoother running, consistent performance and long-term engine protection on the turbocharged straight six.

Why enthusiasts choose this breather kit

• Helps reduce intake contamination and valve deposit build-up on direct-injection N55 engines
• Supports reliable power delivery on standard and remapped cars with improved throttle consistency
• Ideal for hard-driven cars, track days and spirited B-road use where blow-by can increase
• Neat OEM-plus install that looks factory and is simple to service

Standout details

• CNC-machined aluminium mounting bracket with matt black anodised finish for a stealth, factory-style appearance
• Baffled canister with internal micron element for highly efficient oil vapour separation
• Integrated dipstick for quick level checks without removing hoses
• Removable can for easy draining and cleaning
• Vehicle-specific hoses and hardware for a tidy, bolt-on fit

What’s included

• AIRTEC Motorsport baffled canister with internal micron filter and dipstick
• Anodised black billet mounting bracket
• Model-specific hose kit with fixtures and fittings
• Step-by-step installation guide

Compatibility

BMW M135i with N55 engine - F20 and F21

BMW M235i with N55 engine - F22

BMW M2 with N55 engine - F87 non-Competition

Note: Not suitable for M2 Competition models.

Our experience

We install this AIRTEC Motorsport breather system regularly and it has been consistently excellent. Fit and finish are spot on, servicing is quick and owners report noticeably cleaner intake pipes over time. A proven reliability mod for N55 drivers who want to protect their investment.

Fitting service

Want it installed professionally. Book in with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a fitting quote and availability.

Search-friendly terms

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Add to basket for a cleaner-running N55 and a smarter, OEM-style install that works on the road and on circuit.