COMP Cams 4020CPG COMP Cams Stud Girdles COMP Cams Drag Race Camshafts Includes CNC-machined 6061 aluminum spring

Includes CNC-machined 6061 aluminum spring perch adjuster rings (2)

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

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

increasing torsional stiffness by an estimated 30-50% for sharper turn-in and reduced body roll

COMP Cams 4020CPG COMP Cams Stud Girdles COMP Cams Drag Race Camshafts Includes CNC-machined 6061 aluminum springThe 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