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2007 Mercedes S550 2008 Mercedes x164, 2007 Mercedes w164, 2001 Mercedes W210 E55 AMG
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I have to ask a question cause my wife's 2006 R350 seems alittle sluggish and I want to get it ECU chipped. I use to have a chip in two of my cars. One was a vw 2001 passat turbo which was awesome it was so more reactive . My wife wants to keep the car so upgrading is out of the question . These are the products I am looking at:

Powerchip Performance Software Tuning for BMW, Mercedes, Ferrari, Lamborghini, Audi, Porsche

JET Performance Products, Import & Domestic Performance, Performance Kits, Fuel Systems, Transmissions


These two sites seem shady and somewhat b.s


Stage 1 Performance Chip

Mercedes R Class Performance Chips - Amazing Mercedes R Class Chips
 

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06 R360, 06 F350 6.0, 04 CayenneS, 96 911TT 500HP, 86 928S, 74 911S, 73 914-4, 70 914-6, 02 Durrango
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I want to do the same, but I have not found any relyable source of tuning.

The powerchip looks nice
 

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W166, W251 Moderator
1987 560SL - Signal Red, 2014 ML350 - Diamond White, 2019 Ford Explorer - Magnetic (company car)
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1,265 Posts
I have to ask a question cause my wife's 2006 R350 seems alittle sluggish and I want to get it ECU chipped. I use to have a chip in two of my cars. One was a vw 2001 passat turbo which was awesome it was so more reactive . My wife wants to keep the car so upgrading is out of the question . These are the products I am looking at:

Powerchip Performance Software Tuning for BMW, Mercedes, Ferrari, Lamborghini, Audi, Porsche

JET Performance Products, Import & Domestic Performance, Performance Kits, Fuel Systems, Transmissions


These two sites seem shady and somewhat b.s


Stage 1 Performance Chip

Mercedes R Class Performance Chips - Amazing Mercedes R Class Chips
with a NA engine like the e350, there is not too much to pick from for a ECU upgrade, I'm pretty sure that the difference will be almost not noticeable.

If the engine has a turbo like your old VW the ECU upgrade will give you a big difference.

I haven't seen any big players for the ECU upgrade, normally you should stay with REVO, APR, KLEEMAN, MTM etc
 
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