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We could never fully get the drone out. We adjusted the j pipes and it helped some but the bottom line is it makes the drone in stock form more pronounced. That could be because we removed the resonator as well.
I also forgot after the catback I went to the solo high flow cats that was the biggest difference imo. Drone was only there when I didn't shift and let the transmission shift itself. Bottom line is AFM sucks for these cars. 6th gen they got it way better and it is a more seamless function. I lost maybe .5 miles per gallon with it tuned out but there is no reason not to do a tune if you are out of warranty. Made the whole experience of driving the car 5x better.
Imo tune out AFM first and tune the car. Everyone always said just tune it and I was worried about warranty and everything but it was a pointless worry now that I look back. Put it this way, if I had to do an axle back and tune or full exhaust and no tune I would take the tune every time. I believe it is the tune that not only solves the drone problem completely but it also just makes this car drive like a sports car. Car finally feels fast.
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