Update:
After a few days of driving, it might just be that the car revs smoother but these seem a bit less torquey than the stock tubes. Not sure if the car is slower or faster really but its just what I noticed.
Anybody else notice this? I might swap the stock tubes back in and see if its any different. Only thing I can think is if the internal diameter is bigger than the car likes or something.
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2013 Ford Mustang GT
374rwhp, 360rwtq SAE / GT500 Axle-Backs / Brembo Pack / Track Pack / Recaros / 6spd
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