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As someone who went through the same dilemma as you I would ultimately get a range device or tune. Here is how mine went. The factory drone bothered me in stock form. It was so annoying!
2015 L99
First I went with a solo xl cataback with j pipe system and removed the resonator. Sounded great but there was even more drone if I didn't shift the paddles myself but when I shifted myself it sounded great. How it should have from the factory.
Well then I wanted more performance so I got a vararam, full length headers and a tune. Dear God is all I can say. AFM was tuned out and the car picked up almost 50rwhp. Drives like a totally different car! It is much louder now but really only when starting it or getting on it. Otherwise it isn't that loud but when I get one it you can hear it more than half a mile down the road easily.
If your car isn't under warranty tune it! Mine still had 8 months left and I couldn't stand the AFM. I couldn't wait and tuned it. Totally different animal now.
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