20-0588 BAFFLED OIL CAP VTA KIT, GM
This is a VTA (vent to atmosphere) anodized aluminum billet oil cap. It is a direct replacement for the OEM oil cap.

Confirmed Engine Compatibility:
LS1, LS2, LS3, LS4, LS6, LS7, LS9, LSA, L76, L99, L9H, LT1, LT2, LT4
NOTE: there are other compatible engines not listed.

This kit prevents the crankcase from pressurizing. The vented oil cap adds additional air/oil separating filtration to the crankcase that is service free. The 10AN adapter fitting features an integrated check valve for roll-over protection. 

NOTES:
1. VTA kits are not allowed in some racing organizations and sanctioning bodies.
2. Depending on the vehicle, an ECU code could be trigged since the engine is no longer burning all the metered air.
3. If the engine is degreased, the filter must be covered to prevent foreign liquids from entering the engine.

Instruction PDF