My 8 speed was very clunky when I first got it. My 6 speed in '14 would clunk occasionally on 2-1 downshifts, but not bad and not often. The 8 speed was extremely harsh and clunked and banged a lot. The dealer did a reprogram for me early on and that seemed to smooth it out a lot. I still get an occasional slam bang with 1-2 or 2-1. Always under light or no throttle. At WOT it is super smooth. Honestly, I'd rather have the 6 speed back.
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