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      03-03-2013, 11:58 AM   #30
ColdList
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Drives: 2014 991 TTS Cab / 2013 F12 M6
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Quote:
Originally Posted by Boss330
Quote:
Originally Posted by ColdList View Post
Manhart, Schnitzer,PP-all running exact same ECU tune. Not a custom in house tune. No one has one. They come form the same source. I have the EXACT tune, downpipes and exhaust on my car. Car is ridiculously fast. Will leave a stock M5 in the dust. Greatest challenge is launch.
Do you have any source for this info? Hartge does a piggyback/stand alone ECU and others do a remap. Obviously different approaches between some tuners...

Hartge is the only tuner that I know of that has done back to back acceleration runs with a proven reduction in time between speeds (the vids are on Youtube).



And why isn't the PP cars trap speed at the 1/4-mile faster than the std. M5?
And why is the PP car 25hp down on the Supersprint car (at the rear wheels)?


(trap speed is a good indicator of power gain whereas ET is a good indicator of launch and grip at the start)
Hartge doesn't actually tune anything. Their primary business is wheels. Check the lasting results of that piggyback and what happened. I should have not replied to this thread. This creates arguments. It is the truth about the tune. Honestly I am leaving it at that. It can be verified if you investigate it.
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