The Synergy LSx supercharger lid is a single piece billet machined dual brick piece of art. Designed by our own Rick Hollenback it is a direct replacement for both the LS9 lid and LSA lid (with Synergy's LSA adapter plate). Not only does this LS9 / LSA lid bring some bling to your engine bay it has key features baked into its design for performance and usability. Additionally, it brings long needed dual-brick C6 ZR1 lid style cooling to the LSA platform.