Honestly the quietest way to go is do a true dual to your stock muffler. You will get some gains and increase gas mileage but you won't like the way it sounds at wot. I just recently added top speed axle backs and sounds way much better but there is a bit of drone to deal with. It's either going to be quiet or a bit loud no matter what route you go. I will be installing hush mat in my doors and hatch area to get it quieter inside the car. Good luck finding that perfect exhaust.
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Takeda TR3009P Short Ram Intakes, Custom Dual Exhaust, X-Piped with 18" Resonators & TopSpeed Axle Backs. EVO-R Led Third Foglight,
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