Steve_k_550

Thought I'd post in the c63 section due to the fact that these amg's are the ones I always see belting down the strip

My current vehicle is an e550 and It has a very lazy 2.56 final ratio I was wondering if any of you have swapped out the ratios in your cars and if so what issues arose ie software updates what's required etc

I'm looking to put the e350 3.07 in