New C63 Owner Checking in :: 2010 Steel Grey
http://www.eurocharged.com/index.php...art&Itemid=111

Its your money, do what you wish with it, i'd just hate for you to spend more money than you need to.
Additionally all engines are hand built. It really needs to be the same car, same dyno same everything. I doubt anyone is gonna have this data for you.

Bottom line: As far as performance goes, most of these tunes are going to produce similar results.
However, power isn't everything . . .
One of the biggest reasons for me (and I imagine others) going with Kleemann is the support you can find in the local MB dealer network. I have the luxury of having two nearby dealers that are Kleemann authorized and they'll even do the swap for me with no warranty issues. I'll happily pay the extra $200 over a competing tune for a peaceful night's sleep.

Happy Holidays!
How hard do you drive (i.e. how many WOT events per trip, tranny in auto mode or manual)?
The US numbers are 12/19 mpg (15 combined cycle): http://www.fueleconomy.gov/feg/noframes/25925.shtml
German engines are known for a slow break-in process (>40kmi), after which there are usually noticeable improvements in both power and FE, along with a reduction in oil cosumption (once the rings are fully bedded).
I haven't heard anybody complain about oil consumption on this site (like previous gen M5s, etc.), so I was wondering if this engine breaks in faster.
The Best of Mercedes & AMG
How hard do you drive (i.e. how many WOT events per trip, tranny in auto mode or manual)?
The US numbers are 12/19 mpg (15 combined cycle): http://www.fueleconomy.gov/feg/noframes/25925.shtml
German engines are known for a slow break-in process (>40kmi), after which there are usually noticeable improvements in both power and FE, along with a reduction in oil consumption (once the rings are fully bedded).
I haven't heard anybody complain about oil consumption on this site (like previous gen M5s, etc.), so I was wondering if this engine breaks in faster.
My overall average is close to 15mpg now. If I don't get on it, I'm around 18mpg during the week (My commute is 90% highway)
I put in 1/2 quart of 0w40 at 1,000 miles.
I'm going for my test drive tomorrow.



