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My feeling is that IF your tires are going to last 40-50k miles (several years), it may be worth it. Since the PZero's would be lucky to last more than 12-16k miles (~1yr), what's the point.
On the Racecar note, they're speeds and traction are tire pressure dependent so that's why they use it. For a DD, you don't need to be that precise.
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2010 Black 2SS/RS A6
Halltech CF 102 fed
GPI modded intake manifold
Bo (knows) White ported TB
Kooks LT's/ Dynomax VT
Pfadted (springs/sways)
Dyno tuned by Rhino and GPI
I once parallel parked a train.
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