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Just wanted a quick poll. Has anyone on here been able to independently verify that the Roush tune makes 750Chp? I ask because I took mine to a dyno to get a baseline after I had my doubts about the installer giving me a real dyno sheet when they said they do before and after dynos. The car...

My 2021 Mustang GT with a Roush Supercharger Phase 2 recently had its ECU calibration updated. After that was done I started to hear this thumping, 3 of them, any time I would open the driver's door when it's been off for more than 5 min. Sometimes it even will occur if I'm just standing near...

I have a 2021 Mustang GT 5.0L Roushcharged base model. It came with the 4in sync 3 stereo. I have upgraded the software on the APIM to 8" and added a touch screen and toggles. That all works fine, The issue I'm having is I added an aftermarket: 4-Channel AMP JBL Stadium 4 plugnplaykits.com 4...