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Old Feb 12, 2019 | 08:54 PM
  #1  
Kulle's Avatar
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Joined: Apr 2012
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From: Pa
2015 GLA45 AMG
ECU Tune

Anyone have experience with an ECU piggy back that puts out most power without having to install aftermarket downpipe..plug and play. Renntech, Rebellion...??
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Old Mar 22, 2019 | 02:48 AM
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Old Apr 17, 2019 | 07:12 AM
  #3  
03sl55amgmjd's Avatar
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2003 SL55 AMG GT , 2000 BMW 323I coupe
Don't know if if got the answers you needed already, but if not I have recent experience having my 03 SL55 ECU tuned by PresserTec. My only mod is 77mm S/C pulley. I haven't put it on the dyno, however the car is crazy fast. The HP increase, according to PresserTec after tuning is roughly 550HP, 604TQ. I won't know til it's dynoed, but it sure feels powerful.
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