Quote:
Originally Posted by axmea?
... Wife mode or GF mode is resonated HFC and 18" resonated ...
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I'm thinking the same as you. I got 12 res with stock cats. Maybe slightly too much sound in cabin for typical female passengers.
I wonder if 18 res with res hfc will somehow produce less sound in cabin.
Won't hurt to try lols.
Tapatalk & such etc