BMW S58 Cen-Cal Upgraded Intake Manifold Port Injection - G80 M3/G82 G83 M4/G87BMW S58 Cen Cal Upgraded Intake Manifold G80 M3 G82 G83 M4 G87 M2 The Cen Cal Motorsport Upgraded Intake Manifold is the ultimate reliability and performance upgrade for the S58 platform. The factory plastic manifold is a known weak pointmany have failed under higher than stock boost, causing expensive downtime. Our upgraded aluminum design eliminates that risk while improving airflow, throttle response, and long term strength. Available in cast