Well, I think the real question is what happens when tuning enters the equation. Would I make more power with the stock headers and a tune? Or with the Stillen headers and a tune? Tuning could change everything. There could be gains to be had from tuning with the Stillen headers installed that would not be available otherwise (i.e., with the stock headers).
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"There are no small accidents on this circuit." -- Ayrton Senna
316.8whp & 248 ft/lbs (Dyno Dynamics) | 319whp & 256 ft/lbs (DynoJet) (04/23/10)
Stillen G3 CAI, CBE, Pulley / F.I. LTH / GTSpec Ladder Brace / Setrab Oil Cooler / UpRev-tuned by Forged Perf.
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