Renntech Stage 1 M157 / C218 CLS63 AMG ecu tune officially available for purchase - $3,495 and 669 horsepower
We have seen the Renntech M157 twin turbo V8 tune evolve in a very impressive manner over the past few months. Recently, the Stage I tune on a CLS63 AMG ran a 11.3@125 at the strip
. Renntech claims 0-60 of 3.4 seconds which is just incredible for a heavy vehicle like the CLS. Crank ratings are 669 horsepower and 734 pound-feet of torque. We will have a Renntech M157 dyno comparison up later in the week.