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  1. stevedekorte

    OS Giken clutch noise

    After adding a high boost SC, my OEM clutch didn't last long and I needed to upgrade to something that could handle the extra power. I ended up with OS Giken STR2C Twin Disc. It has great grip but makes a terrible noise when the clutch is depressed. Some people don't mind this but I do, so I'm...
  2. Risen

    Powertrain OS Giken STR2C Twin Plate Clutch + Alteration

    OS Giken STR2C Twin Plate Clutch + Alteration Kit. Great for Forced Induction! New in Box, made in Japan. Fits NA1 but can also fit NA2 with NA1 Type Input Shaft. $1,950 Shipped