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    • First M157 and CLS63 AMG in the 10's - Renntech Stage 2 powered 2012 CLS63 AMG runs the 1/4 mile in 10.9@129

      Well, it didn't take long for M157's to start running 10's in the 1/4 mile now did it? 10.9@129.40, absolutely incredible. The Renntech tune on the M157 in Stage I form previously powered a car to 11.3135 in the 1/4 mile. This was the Stage II package which is rated at more horsepower with a "conservative" 688 horsepower crank rating. Expect more details to come shortly on the Renntech Stage II package for the M157. For now, enjoy the World Record 1/4 mile run video below.



      This article was originally published in forum thread: RENNtech M157 twin turbo 5.5 liter V8 Package 2 700hp ECU tune & LSD upgrade breaking into the 10's in the 1/4 mile started by m54b25 View original post
      Comments 22 Comments
      1. Exeenom's Avatar
        Exeenom -
        I have great respect and appreciation for the aftermarket performance companies that conduct actual track testing to accompany their dyno charts. Tuning on the dyno is great but when paired with live track testing, they certainly produce a solid combo. RENNtech has done this with the E-Class, SL-Class, CL-Class, etc...
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Exeenom Click here to enlarge
        I have great respect and appreciation for the aftermarket performance companies that conduct actual track testing to accompany their dyno charts. Tuning on the dyno is great but when paired with live track testing, they certainly produce a solid combo. RENNtech has done this with the E-Class, SL-Class, CL-Class, etc...
        This is true. Renntech has been combining their press releases and dyno results with on the track numbers to back them up. They are doing it the right way and setting the standard, respect.