The 034Motorsport Catch Can Kit for the Audi S4, S5, RS4 and RS5 (EA839 engine) Replaces the weak original PCV hose with a high-quality, pressure-resistant system that traps oil deposits before they reach the intake. This upgrade prevents boost leaks, increases reliability, and extends the life of your engine.
The system contains a baffled billet aluminum catch can that filters oil and water vapor from the crankcase ventilation, so that only clean air returns to the intake. The redesigned breather hose with 22.5 mm diameter Guarantees optimal flow and prevents overpressure in the crankcase, even at boost levels above 40 PSI. The kit is designed for a perfect fit, retention of the original engine cover, and easy maintenance thanks to the integrated dipstick and drain.
Properties
- Direct replacement of the weak OEM PCV hose
- Improves crankcase ventilation and prevents pressure buildup
- Withstands 40+ PSI boost pressure
- CNC-machined aluminium valve housing (black anodized)
- 4-ply silicone hose (22.5 mm) with reinforced walls
- Prevents oil deposits in the intake and on valves
- Reduces carbon accumulation
- Integrated oil check dipstick
- Service-free use with drainage system
- Retains the original engine cover
- Easy assembly, no drilling required
- Suitable for OEM and upgrade turbo intakes
- Lifetime warranty
Technical specifications
- Material: CNC-machined billet aluminium (black anodized)
- Breathing tube: 4-layer silicone, 22.5 mm diameter, reinforced walls
- Resistant to boost pressure above 40 PSI
Contents of the set
- 034Motorsport Catch Can (black anodized)
- Billet breathing fittings and check valves
- Reinforced silicone hose
- Oil drain set
- Mounting hardware & bracket
Frequently Asked Questions
What exactly does a catch can do?
It captures oil and fuel vapors before they enter the intake, preventing carbon buildup and power loss.
Does this need maintenance?
No, the system is low-maintenance thanks to the built-in oil drain and dipstick.
Will this fit 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 power setups.
