I fixed a decent bit of the drone with some custom side branch resonators. No impedence to flow and it negates quite a bit of it. Not many people want to weld onto their FI exhaust though but I didnt care since mine was custom made (and mucho cheaper).
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2013 Ford Mustang GT
374rwhp, 360rwtq SAE / GT500 Axle-Backs / Brembo Pack / Track Pack / Recaros / 6spd
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