Mazda 20B 3-Rotor Billet Intake Plenum

Time to upgrade your 3 rotor like never before!! Material: 6061-T6 CNC machined aluminum This one-of-a-kind plenum is designed to maximize off boost power and broaden the torque curve to achieve amazing low boost power capabilities and ensure fantastic drivability throughout the entire powerband.  This part features a unique multi-part design that utilizes the stock 20b Cosmo upper intake manifold, which is modified to have multi-length intake port geometry for increased low rpm off boost power characteristics. It is then welded to a flange that bolts to the new billet plenum which allows you to disassemble the manifold and clean out any buildup in the main plenum body.  The manifold includes one -8 male fitting, two 1/8 NPT ports, one 2 bar MAP/temp sensor (can be upgraded to 3 bar), two mounting holes for intake plenum support bracket, and two mounting holes for throttle cable bracket.  Throttle body flange can be customized to the throttle body of your choice. Non-custom options in