Pay in 4 interest-free payments of $22.74 Learn more
Ships within 48 hours · Estimated delivery Jul 31 - Aug 5
Locate the OEM bolt holes and you're set
mounting hardware is not included
Direct fit design - No adapter or modification needed
This adapter uses a Male M18x1
Socket Type: H11
Comp Cams STEEL RETAINERS Porsche 911 GT3 RS (991.2) Locate the OEM bolt holes7 Steel Retainers: 1. 320" Spring Dia. Valve springs with larger diameters require retainers to handle the higher pressures developed by the springs. 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
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