To fit any 13B with Peripheral Port  (PP) Rotor Housings.

The Racing Beat-designed and manufactured Peripheral Port Intake Manifold mates a Weber 48 IDA or 51 IDA downdraft carburettor, or equivalent throttle body, to the Racing Beat-manufactured 13B peripheral port housings.  Intake Manifold Length is 140mm 

This manifold cannot be used on the Mazda Factory Race MFR housings.

The steel tubing manifold is attached to the rotor housings with hoses that are included. A simple support bracket fabricated for your particular application, typically attached from the carburettor-manifold junction to the threaded bosses on top of the rotor housings, will complete the task.

Click Here for intake instructions