There are 50k threads on headers. Pretty much all header/HFC combo's will do what you asked. Pick the one that fits your budget and don't look back.
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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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