This is for the passenger fuel rail cover / injector ECU bracket. Shed weight from the engine by removing the bulky steel piece and installing this light 5052 aluminum unit. Great at adding some color to the engine bay as well. 

*Note: The factory DI ECU needs a ground, which it typically gets from the lower bracket which is near the head.  If you remove this, you'll need to properly ground the ECU in some form!*

If you are using an aftermarket crank pulley or damper, it could cause the bracket to crack and fail prematurely.