Reviving and old thread but looking for some answers as headers seem to be my next purchase.
Semtex, did you ever redyno with the stillen's after a tune? Thanks.
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2008 Infiniti G37s 6mt coupe
Berk HFC, Magnaflow Catback, JWT Popchargers, H&R, Eibach, Stillen Sways, B&M short throw, 4.08 frontier gears, NST pulleys
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