You will need to factor in drone as well as sound for your car. I have run three different setups so far all of which are custom and are not name brand specific
My first setup was a true dual exhaust with the stock muffler. Idle and low rpms sounded fine. Wot sounded horrible but no drone at all.
My second setup was the same true dual with 12" resonators and top speed axle backs to replace the stock muffler. It was loud at startup and screamed at wot but the drone was driving me crazy
My 3rd and current setup I had a custom X pipe, true dual, 18" resonators with my top speed axle back. End result was a lot quieter lower rumble tone with minimal drone. Everyone I have had listen to tell me they loved the sound.
If I set it up right the first time my exhaust would have cost about $600 and that's including the axle backs but I have spent over well over $1000 to get the sound with no drone effect. Any way you go, you should make sure you are getting 18" resonators from any choice of system out there. You will get the lower deeper growl you are looking for
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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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