I know I can search the www for this info. but just wondering if anybody local has installed some minor stuff (cold air, mail-order tune, axle-backs) on their S550 and if you got a baseline dyno and after. American Muscle is claiming 34RWHP and 47RWTQ with just a JLT intake and Bama tune.

I was just placing this virtual order for my virtual 2016.

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