My Novi has helical cut gears (as opposed to straight cut on the old Vortech's) and it's not THAT quiet. Slightly audible but nothing too loud. I haven't heard a clip of the SC-Trim yet so I can't comment on how quiet or loud it is.
You could always look into a used A-Trim if you want the old style that badly.
BTW: How do you like the sound of the Magnaflows? I was thinking about switching from Dynomax to Magnaflow but it's still up in the air.
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~Dan
2001 SVT Lightning
89' GT : Taking up garage space and waiting for a buyer...
Rice Hater's Club - Member #11
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