Comp Cams FORD 3.8L-4.2L STEEL RETAINER Racing Straight-through design for improved exhaust

Straight-through design for improved exhaust scavenging

This is the driver-side trim piece that runs along the front bumper edge

exceptional damper performance is guaranteed at any temperature

If you're running a tuner or custom ECU tune

25 thread - Standard metric fitment

Comp Cams FORD 3.8L-4.2L STEEL RETAINER Racing Straight-through design for improved exhaust7 Steel Retainers: Stock Spring Dia. Valve springs with larger diameters require retainers to handle the higher pressures developed by the springs. New COMP Cams Steel Retainers are the perfect solution to this problem. COMP engineers used 3D CAD with FEA to design retainers with a modern and advanced contoured top profiling for lower stress, increased lift and a reduction in mass. The retainers are CNC machined to exact tolerances using CAD CAM