I just had mine replaced with OEM 987 from a factory 986 for a 2001 boxster and man alive what a difference!! I think it is a great combination of comfort and rigidity. From what I got from it. I only drove it about 10 blocks due a license discrepancy
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So far so good tho. I would recommend the OEM.
Also I don't track the car so I can't speak to that. But for street, she's a beaut!