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2018, 2ss, Automatic with: K&N black-hawk cold air intake, Flowmaster American thunder axleback 8177746, and Range AFM disabler Plugged into OBD2.
(Loud on first startup, but then once the car is warmed up, has a low rumble to it. I do not notice much drone when cruising.)
Tomorrow, I am getting installed the Flowmaster scavenger x pipe. I will let you know if it sounds any louder.
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