NISSAN SILVIA S13 SR20DET INTAKE PLENUMSILVIA S13 SR20DET INTAKE MANIFOLD Smooth internal housing to ensure the best possible air follow. The Best and easiest way to upgrade your intake system and fuel system. the inlet is designed especially for SR20DET motor. This manifold allows for large volumes of air to get evenly distributed to the cylinders. To achieve the most form larger turbochargers at higher boost levels, a smooth flowing Intake manifold is a must. This fine cast aluminum