The factory PCV breather system on EA839 engines represents a critical failure point under turbocharged conditions. OEM plastic quick-connects, thin hose construction, and fragile diaphragm check valves are inadequate for high-boost crankcase pressures—particularly on tuned applications where system reliability is non-negotiable. The TGK Motorsport PCV Breather Line Kit completely eliminates these vulnerabilities with precision-engineered components designed for sustained high-performance operation.

This system was engineered from the ground up to address every weakness in the OEM design through superior materials science and valve architecture. Available with either TGK Premium Billet Aluminum fittings for maximum durability or TGK OE Style Plastic fittings for cost-effective reliability, both configurations deliver significantly enhanced pressure handling and long-term service life. This is not a band-aid solution—it's a permanent upgrade that supports everything from stock daily drivers to aggressive Stage 2+ builds without compromise.

	Billet Aluminum Kit	OE Style Plastic Kit
Fitting Material	CNC-Machined 6061-T6 Aluminum	High-Grade Engineering Plastic
Check Valve Design	Precision Piston-Style	Precision Piston-Style
Pressure Rating	40+ PSI	40+ PSI
Durability	Maximum Long-Term Reliability	Enhanced Over OEM
Application	Track/High-Boost/Extreme Duty	Street/Stage 1-2/Cost Effective

Audi 4M Q8 3.0T Parts

TGK Motorsport PCV Breather Line Kit - Audi EA839