The 034 Motorsport catch can kit for the Audi S4, S5, RS4 and RS5 (EA839 engine) replaces the flimsy original PCV hose with a high-quality, pressure-resistant system that captures oil deposits before they reach the Intake. This upgrade prevents boost leaks, improves reliability and extends the life of your engine.
The system includes a baffled billet aluminium catch can that filters oil and water vapour from the crankcase ventilation, ensuring that only clean air returns to the Intake. The redesigned breather hose, with a diameter of 22.5 mm, ensures optimum flow and prevents excess pressure in the sump, even at boost levels above 40 PSI. The kit is designed for a perfect fit, to retain the original engine cover and to allow for easy maintenance thanks to the integrated dipstick and drain plug.
Features
- direct replacement for the weak OEM PCV hose
- Improves crankcase ventilation and prevents pressure build-up
- Withstands boost pressures of 40+ PSI
- CNC-machined aluminium valve body (black anodised)
- 4-layer silicone hose (22.5 mm) with reinforced walls
- Prevents oil deposits in the Intake and on the valves
- Reduces carbon build-up
- Integrated dipstick for oil level checks
- Maintenance-free operation with drain system
- Retains the original engine cover
- Simple installation, no drilling required
- Suitable for OEM and aftermarket turbo inlets
- Lifetime warranty
Technical specifications
- Material: CNC-machined billet aluminium (black anodised)
- Air hose: 4-layer silicone, 22.5 mm diameter, reinforced walls
- Withstands boost pressure above 40 PSI
Contents of the set
- 034 Motorsport Catch Can (black anodised)
- Billet vent fittings and non-return valves
- Reinforced silicone hose
- Oil drain kit
- Fitting hardware & bracket
- Installation instructions
Frequently asked questions
What exactly does a catch can do?
It captures oil and fuel vapours before they enter the Intake, preventing carbon build-up and loss of power.
Does it require any maintenance?
No, the system is low-maintenance thanks to the built-in oil drain and dipstick.
Is it compatible with the original engine cover?
Yes, the kit is designed to be compatible with the factory cover.
Is it suitable for tuned vehicles?
Yes, the system supports boost pressures above 40 PSI and is ideal for high-output set-ups.
