cs2021
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I have a 2021 GT and just added a Stage 2 Roush supercharger. It appears the new ecm programming greatly effects the active exhaust and rev match. The car no longer has the aggressive exhaust . Downs shifting no longer has the quick throttle snaps . It sounds more like downshifting a dump truck . The active exhaust also seems effected holding it in low gear and revving no long has the awesome aggressive exhaust sounds . Is this typical ? Went from an awesome aggressive sound beast to a WTF is this. Thanks Robert
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