I put lightened flywheels in both my RSA and 993. In both cases I had to adjust my driving style on the street. A chip helped in both case but did not completely eliminate the stalling when abruptly coming of throttle.
I can't imagine a light weight pulley by itself would have the same effect. I do like the idea of an under-drive setup.
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16 Cayman GT4, Carmine Red, Buckets, PCCB etc.
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