COMP Cams 4020CPG COMP Cams Stud Girdles COMP Cams Drag Race Camshafts The aFe BladeRunner exhaust manifold

The aFe BladeRunner exhaust manifold set replaces the factory cast-iron manifolds on 1998-2002 RAM 2500 and 3500 trucks equipped with the 5

and the pump dimensions mimic many OEM pump assemblies for straightforward installation in factory modules

Direct OEM replacement — press out the old rubber and install these with Energy Suspension Super Grease

While the factory cat-back remains in place the acoustic transformation is dramatic with a 85-92 dB exhaust volume increase at wide-open throttle

COMP Cams 4020CPG COMP Cams Stud Girdles COMP Cams Drag Race Camshafts The aFe BladeRunner exhaust manifoldThe COMP Cams 4020CPG COMP Cams Stud Girdles are precision machined rocker arm stud girdles designed to eliminate valvetrain flex at high RPM. As valve spring pressures increase and cam profiles become more aggressive, the rocker arm studs can flex under load, introducing valvetrain instability. Stud girdles tie the rocker studs together, creating a rigid structure that maintains rocker arm geometry. CNC machined from 6061 T6 billet aluminum, these