Don't expect to make power with an exhaust on the S...it's just for looks and sound. My personal favorite is the HKS dual. From what I hear, the Invidia drones quite a bit...and I don't like the burnt Ti tips.
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2015 Ford Mustang GT Fastback - Ingot Silver - 6M - Performance Package - Gibson Catback, JLT CAI, FR 47lb injectors, BAMA E85 tune, Eibach Sportline, BMR wheel hop kit, UPR oil separator, Steeda shifter bushing/bracket
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