The Ford Focus ST demanded a true 3” diameter exhaust for peak performance. The system also demanded our 'True Helmholtz Technology' to attack the drone that would inevitably sneak in if not properly addressed. After including a resonator in the mid-pipe, we added an external Helmholtz resonator to cancel specific frequencies – namely drone at cruising speeds.
We rounded out the system with a unique tip that fits the OEM valance perfectly and completed an exhaust package that any ST owner would be proud to run on the street or the track.
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