Protect Your EA839 Before the Factory PCV Fails
The factory breather hose system on the B9/B9.5 Audi SQ5 is known to fail, potentially leading to crankcase pressurization, oil leaks, reduced performance, and in extreme cases, engine bay fires. The 034Motorsport Catch Can Kit for B9/B9.5 SQ5 was engineered to solve these issues while improving long-term engine reliability and reducing carbon buildup.
This is not just another catch can.
This Catch Can Kit completely replaces the weak OE breather hose assembly with a fully re-engineered system featuring proprietary high-flow check valves, reinforced silicone hoses, and a large baffled billet aluminum catch can designed to trap crankcase oil vapor before it enters your intake tract.
Whether your SQ5 is stock or running Dynamic+ Stage 1, Stage 2, or Stage 3 tuning, this kit delivers the crankcase ventilation performance your EA839 needs.
Why Upgrade?
- Replace the Failure-Prone Factory PCV Breather Hose
- Supports 40+ PSI of Boost Pressure
- Reduces Carbon Buildup on Intake Valves
- Keeps Oil Out of the Intake System
- Improves Long-Term Engine Reliability
- Integrated Drain System for Service-Free Operation
- Retains Factory Engine Cover
- Compatible with OEM & Upgraded Turbo Inlets
Designed from Real-World Experience
During development of 034Motorsport Stage 3 Dynamic+ software, an OEM PCV hose failure on a development vehicle resulted in an engine bay fire after oil was expelled onto the turbocharger. That experience drove the engineering behind this complete solution, built to withstand elevated boost pressures and harsh engine bay temperatures.
The result is the most comprehensive and thoroughly engineered EA839 catch can system on the market.
Features:
- Direct Replacement of the Failure Prone OE PCV Hose
- Ensures High Flow Crankcase Ventilation to Prevent Crankcase Pressurization
- Unlike Other Kits, Our Solution is the Only One on the Market That Can Hold The Pressures and Flow Enough to Ensure Proper PCV and Turbocharger System Performance
- Supports Boost Pressures to 40+ PSI
- Compatible with OEM and Upgraded Turbocharger Inlets
- Eliminates Potential Boost Leak at OE Plastic Check Valve Housing
- CNC-Machined, Billet Aluminum Check Valve Body (Black Anodized), with a Heat and Chemical Resistant, Durable Rubber Diaphragm
- Large Diameter, 4-Ply Reinforced, Fluorolined Silicone Hoses
- OE hose diameter: ~16mm
- 034 hose diameter: 22.5mm
- FluoroLined to prevent Oil Sweating
- Prevents Crankcase Oil Deposits in Intake Manifold and on Intake Valves
- Reduces Carbon Buildup
- Integrated Dipstick for Easy Level Checks
- Retains Factory Engine Cover
- Service-Free Use with Included Catch Can Oil Drain!
- Simple Bolt-In Installation
What’s Included:
- 034Motorsport Catch Can Assembly (Black Anodized)
- 2x) 034Motorsport Breather Check Valves
- 2x) 034Motorsport Reinforced Silicone Hoses
- 4x) Billet Engine Cover Studs
- Catch Can Oil Drain Kit
- Catch Can Heat Shield
- No-Drill Mounting Bracket
- Installation Hardware