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Old 06-19-2012, 11:05 AM   #1 (permalink)
Arnold
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Default Exhaust with valve opening: which setting for track

Hi,

I bought a second hand 370Z (less that 10K kms) in December and I'm hitting the track in beginning of July.
Just a (stupid) question: the previous owner fitted a NAP exhaust line with the remotely openable valves.

Is it any better to race with this open or closed or no difference at all, it's just the sound?
My guess: last option

Thanks!
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