Vigor? Luxury?? hehee....
Acura no lnoger makes the buzzy little 5cyl anymore. Pretty sad is Honda makes an engine and discontinues it.
But back to the point. Dynomax ultraflow stainless will be your best flowing quietest muffler. HOWEVER, on a small displacement engine even a hole catback will only net you 3-5 hp IF that....
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-Eddie