FAST 54039B LSX 92mm Black Intake Manifold (LS1, LS6, LS2)LSX Intake fits Cathedral Port Cylinder Heads LS1, LS6 & amp; LS2 Forget about inferior knock offs, the patented LSX 92mm Black Intake Manifold from FAST is the only three piece Gen III composite manifold proven to deliver increased performance without compromising bottom end drivability or high RPM power. For both street and racing applications, the new black intake manifold is an easy bolt on installation for GM Gen III (LS1, 2 & amp; 6)