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Mazda CX-9 Mods
I had a reputable muffler shop remove the resonator from my exhaust system and replace it with a straight pipe leaving the two rear muffler alone. The result is a very subtle and nice deep tone that is not intrusive at all but has a better tone then the stock set-up. There is no performance lost or gained and it is strictly tone of exhaust difference. The sound emmitted now is a more subtle tone of an Infiniti G35 or FX35. If anyone is interested in this mod I highly recommended.