Honda/Acura Billet CNC intake manifold designed for the B18A/B engine. Engineered for street/strip applications where peak torque and horsepower gains are realized between 3000-9800 rpm. The larger-than-stock plenum volume and huge velocity CNC machined tapered runners are tuned for producing peak power at high rpm. Head flange, plenum base plate, and runners are CNC machined from aircraft grade 6061-T6 billet aluminum. Plenum is a custom designed in-house stamping from custom machined billet dies. Assembled with either a stock throttle body flange, or a 75mm mustang flange. CNC machined billet fuel rail stands are included. Ideal for all-motor and turbo applications. Requires relocation kit for the IAC. Click "Here".