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@EDWYER :
Curious to hear your comments once you have driven your ST 100 miles or so post H-Pipe upgrade. Both my 2010 GT Convertible and later my 2016 GT Convertible had been previously upgraded with Resonator Delete MRT H-Pipes. Fast forward, I bought my ST in January 2025 and the "H-Pipe" was my first serious modification. I personally find more torque and quicker response from say 30mph up to 70mph acceleration. There is some uptick in exhaust note, especially from cold start, if you are standing outside to hear it. Once inside the vehicle, the fake piped in exhaust noises overtake the vehicle's actual exhaust sounds to the point that you really cannot tell the difference. Looking forward to your comments.