034Motorsport B9/B9.5/C8 2.9T Engines V2
Free US shipping on orders over $250
Make sure this fits your car
Fits: S4 / S5 / RS5 B9
- Shop tested in Dallas
- Free pickup in Dallas
- Installs at our shop
Upgrade your failure-prone PCV breather hose with the high-performance, reliable 034Motorsport PCV Breather Hose, engineered for enhanced durability and long-lasting performance. The 034Motorsport PCV Breather Hose isn’t just an upgrade for tuned vehicles - it’s also a critical safety enhancement for all EA839-equipped vehicles.
The PCV breather hose on the EA839 relies on a pair of internal check valves; however, these factory components are prone to premature failure. Once these check valves fail, they can no longer regulate crankcase pressure properly, causing the crankcase to pressurize and potentially allowing hot oil to escape that can lead to serious engine damage, including the risk of fire. This failure occurred to a development vehicle in Ashes to Asphalt, documenting the absolute worst case scenario of when the PCV system can fail.
This failure can occur on bone-stock vehicles or vehicles tuned with Stage 1, 2, or 3 power levels. The 034Motorsport PCV Breather Hose is designed to offer reliable crankcase ventilation for the EA839 V6 at all power levels.
Features:
- Direct Replacement of the Failure Prone OE PCV Hose
- Ensures High Flow Crankcase Ventilation to Prevent Crankcase Pressurization
- Eliminates Potential Boost Leak at OE Plastic Check Valve Housing
- Supports Boost Pressures to 40+ PSI
- Compatible with OEM and Upgraded Turbocharger Inlets
- CNC-Machined, Billet Aluminum Check Valve Body (Black Anodized), with a Heat and
- Chemical Resistant, Durable Rubber Diaphragm
- 4-Ply, Reinforced, Silicone Hose
- Retains Factory Engine Cover
- Simple Installation
What's Included:
- 2x) 034Motorsport Breather Check Valves
- 1x) 034Motorsport Reinforced Silicone Hose
Fitment:
- Audi / S4 / B9/B9.5 / 3.0 TFSI / 2018-Present
- Audi / S5 / B9/B9.5 / 3.0 TFSI / 2018-Present
- Audi / SQ5 / B9/B9.5 / 3.0 TFSI / 2018-Present
- Audi / A6 / C8 / 3.0 TFSI / 2019-Present
- Audi / A7 / C8 / 3.0 TFSI / 2019-Present
Listed for these cars. Check the title and description for exact years, body styles and drivetrain.
| Make | Model | Chassis | Years | Fits |
|---|---|---|---|---|
| Audi | S4 / S5 / RS5 | B9 | 2018+ |
Not sure? Call or text 945-954-1142 with your car or VIN.
- Free US shipping on orders over $250.
- Free pickup at our Dallas shop, usually ready within 24 hours.
- Unused parts can be returned within 30 days. Tunes, opened electronics, merch and installed parts are final sale.
- Want it installed? Book the install at thegbmotors.com.
Full details are on our shipping and returns page.
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