I can vouch for the Pfadt street performance specs. I just rolled over 22k miles on my stock Pirelli's and there's still some tread left. Obviously I don't do a lot of burnouts but that should tell you that the settings aren't hard on your tires.
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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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