Right now I have stock cats with no resonators and I have less than 10% drone at cruising speed. It's so low that I do t even notice the sound of the mufflers. If I step on it though, then it wakes up. You can take a look at the YouTube link I posted a few pages ago to my slower drive by, almost no noise at all.
Sent from my iPizzle using magic and new-fangled science stuff
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