AIRTEC Motorsport Twin Oil Breather Kit for Mk3 Focus RS and Mk3 Focus ST
Upgrade the crankcase ventilation on your Ford Focus with the AIRTEC Motorsport Oil Breather Kit for Mk3 Focus RS and Mk3 Focus ST. Developed and manufactured in the UK at AIRTEC HQ, this twin oil breather solution is designed for both standard and modified EcoBoost engines and is a proven way to reduce oil vapour entering the intake, control blow-by and help prevent carbon build-up. If you are searching for Focus RS oil breather kit, Focus ST oil catch can, Mk3 Focus RS breather, Mk3 Focus ST breather, PCV plate upgrade, PCV system upgrade, or billet baffle plate for EcoBoost, this is the go-to choice.
The kit replaces the factory Positive Crankcase Ventilation (PCV) plate and valve with a precision-machined billet aluminium baffle plate that adds extra internal baffles. This increases the surface area the crankcase vapour passes over, which helps decrease the amount of oil that reaches the intake system. It also features take-offs for one or two external oil breather tanks, often referred to as catch cans, further helping to reduce crankcase pressure and oil carryover on the 2.0 and 2.3 EcoBoost engines.
Why upgrade your PCV and breather on a Mk3 Focus RS or ST
The original PCV set-up can allow oily vapour to coat the intake tract and inlet valves over time, leading to an oily sludge that restricts airflow and can harm long-term performance. Preventative maintenance with a proper PCV plate upgrade and external breather tanks helps keep the intake cleaner and reduces the risk of carbon build-up. It is a simple, effective, value-for-money solution for reliable performance on road and track.
Key features
- Billet aluminium PCV baffle plate replaces the factory PCV plate and valve
- Extra internal baffles help reduce oil vapour entering the intake and help reduce carbon build-up
- Provision for one or two external breather tanks for improved crankcase ventilation
- Anodised breather tanks with built-in dipsticks for easy level checks
- High quality AeroTec hose fittings and correctly sized pre-cut hoses
- Anodised finish with engraved AIRTEC logo
- Simple installation with all fixtures and fittings supplied
Fitment and compatibility
- Ford Focus Mk3 RS 2.3 EcoBoost
- Ford Focus Mk3 ST 2.0 EcoBoost
- Suitable for standard and modified vehicles
- Available as a complete twin breather kit or in separate top or bottom sections if only one part is required
What you get
- Machined billet PCV baffle plate with additional internal baffles
- One or two anodised external breather tanks with dipsticks
- Pre-cut hoses, high quality AeroTec fittings and all required fixtures
- Clear, straightforward installation guidance
Real-world results
We have run this AIRTEC Motorsport oil breather kit on our own Mk3 Focus cars and it has been faultless. Our customers consistently report cleaner intake systems, reduced oil misting and a noticeable improvement in day-to-day drivability. It is a trusted, UK-made upgrade that delivers exactly what EcoBoost owners want from an oil catch can and PCV plate upgrade.
Fitting service
DIY-friendly with basic tools, although professional fitting is recommended. For expert installation, choose Nforcd in Warwickshire. Request a fitting quote at Sales@nforcd.com.
Search-friendly terms
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