Supertech Factory Shim Replacement 12.15mm Diameter 3.20mm Thickness | 1989-2002 Nissan Skyline GT-R (RB26-SHIM-3.20)
1989-2002 Nissan Skyline GT-R Factory Shim Replacement by SupertechBy placing a valve shim in any out-of-tolerance valve spring location, all cylinders are able to receive and exhaust the same amount of material. Many engine builders consider the valve shi
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$6.32
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