COMP Cams 4020CPG COMP Cams Stud Girdles COMP Cams Drag Race Camshafts While the factory cat-back remains

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

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

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

Includes a -4 AN male fitting for direct bottle or line mounting

This Autogage by AutoMeter Analog Gauge Consoles is manufactured to meet the demands of street and competition use with attention to the specific requirements of the intended application

COMP Cams 4020CPG COMP Cams Stud Girdles COMP Cams Drag Race Camshafts While the factory cat-back remainsThe 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