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2k Rpm Drone Please Help
I have eisenmann race with catless x-pipe.While the sound is amazing in higher rpm's it is not nice at low rpm's.I usually stay between 2k-2.5 on the freeway so i need your help here.I still have primary cats on the car.My question is if i delete them and put oem secondary cats to my x-pipe,can i eliminate drone ???
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