Boundary billet back plate for Toyota Celica and Lotus Elise 2ZZ-GE engines: a high-flow anti-cavitation back plate specified to address cavitation concerns in 2ZZ-GE oil pump systems. The product description identifies this back plate as an application-specific billet component intended to support high-flow pump configurations on the listed engines.
Boundary Toyota Celica/Lotus Elise 2ZZGE High Flow Anti-Cavitation Billet Back Plate