To be fair, I was never fast enough to really care how good/bad an SP shock is! Pretty sure my talent ran out long before the shock's performance ever did!

They work pretty well in my personal opinion, certainly on the road, and we did loads of them while I was at GT Performance. However, we did often fit a stronger spring, as they're naturally undersprung for most westerners... especially in the 21st century!

I seem to recall we did Tom Sewell's SP shock with an Eibach spring. I'll drop him a line to check, and ask him to pop by and comment on it. I know he'd done plenty of track days on his 21 since we worked on it.
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Andy.
NSR-WORLD.COM

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