Louder, yes, when you're on the throttle. Downshift and tip-in burble is more pronounced. No change in volume at cruising speed. No drone, even in when laying into it while in a high gear, with low revs.
Performance is unchanged. If there are any gains/losses, I can't tell.
It looks much better than stock. I'd like to have rolled edge tips, but those can always be swapped later.
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