Originally Posted by ror0
In case anyone is interested, Renntech doesn't "make a chip" for the Crossfire, they modify the original M-B chip already there. When mine was done, the Renntech Tech had actual M-B software in German on his laptop computer. (He was from Germany.) He coordinated the upgrade with a live M-B technician in Germany during the overwrite process. Since M-B assists in the upgrade, it is completely safe. These are the chip changes that are made:
1. Faster throttle response.
2. Increase of 10 - 15 HP from 215 BHP @ 5700 RPM to 225 - 230 BHP @ 5700 RPM.
3. Gain of 12 Lbs.-Ft. Torque from 229 lbs.-ft @ 3,000 -4,600 RPM to 241 lbs.-ft. @ 3,000 - 4,500 RPM.
4. Gain of 300 RPM over the Red Line.
5. Raises the electronically controlled top speed limiter from 158 MPH to over 186 MPH.
6. Increases the shifting RPM in first and second gears by 100 RPM and makes shifting throughout the gears smoother (with Autostick).
My Limited Roadster now runs like a dream and is very peppy! (I also added K & N Air Filters.)
I am calling BS on this one. MB employees are not involved in the modification of the ECU software. At least not on company time. First thing is they would contact AMG (yes AMG is now a division of MB but there is a difference). Next is the software was hacked by a smaller shop in Germany who everyone uses as their basis.
As for the guy that has never heard of Upsolute apparently never looked very hard as they have been around a long time.
I would like to see photo's of the "turbo SL55". How do the numbers the turbo is putting down compare to the stock SC?
Personally if/when I get chipped it will be by one of the following companies:
1) RENNtech
2) Kleeman
3) PowerChip (and they are a distant 3rd)