Fits 1970 74 Dodge Challenger Plymouth Barracuda Battery Relocation Tray BHS589 control arms and parts MagnaFlow California Grade CARB Compliant engine management systems MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 441204 helps keep the check engine light off Brand Holley EFI Color Black Dash Fitment Holley EFI 7 The Mopar E Body has the battery in the same location that is often needed for the Gen III Hemi air inlet & air filter on some Gen III Hemi engines (this varies based on the factory intake manifold on the engine) Battery Relocation Tray # BHS589 Moves the Battery from the Drivers Side to the Passenger Side for Air Intake & Air Filter Clearance