This is a light weight aftermarket replacement flywheel for the ST215W caldina GT-T (5.2KG) A lighter flywheel will mean quicker increases in engine speed as it has less mass to rotate.
Note: Image above is a sample image only, not representative of the actual item. Special order item.

Yellowspeed Brake Kit 356mm 6-pot (18") Front
Kinugawa Japan 20G upgrade kit for EVO 1-3 TD05 w/ Actuator
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Short shifter - Subaru WRX / Legacy 2002 up 