Value for money downpipes?? Piggy back for downpipes??
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Joined: Jan 2018
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S205 C63S
Value for money downpipes?? Piggy back for downpipes??
Hey all,
2 questions...
What are the best value for money downpipes?
ALSO
Is a flash needed for downpipes or can it be run on a piggyback? (I understand there will be a check engine light if its not flashed, I'm more asking about the tune side of the car.)
Thanks.
2 questions...
What are the best value for money downpipes?
ALSO
Is a flash needed for downpipes or can it be run on a piggyback? (I understand there will be a check engine light if its not flashed, I'm more asking about the tune side of the car.)
Thanks.
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From: Houston
2003 W211 E55, 2003 W220 S600
ECU calibration first.
You will need the ECU to be flashed if you install catless down pipes.
Another option is to by the Fabspeed O2 sensor extensions with cat material if you don't plan the flash the ECU
Piggy back will not be able to turn off the rear O2 sensors
You will need the ECU to be flashed if you install catless down pipes.
Another option is to by the Fabspeed O2 sensor extensions with cat material if you don't plan the flash the ECU
Piggy back will not be able to turn off the rear O2 sensors
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Former Vendor of MBWorld
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2003 W211 E55, 2003 W220 S600
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From: Chicago
2015 W205 C63S, 2015 328i xdrive, 2008 Mercedes R-Class 350, 2009 Hyundai Equus
I assume that running catless downpipes with just the O2 sensors will be bad for your motor and run really rich? I guess running rich is better than running lean tho. I'm planning on getting a tune in Texas or Florida or Cali and I'm in Illinois (lol). I really don't wanna pay for the labor of installing the downpipes because I can do that myself with my buddies. Yall think its okay to drive couple thousand miles with just the O2 sensors and catless downpipes?
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Joined: Oct 2017
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From: Chicago
2015 W205 C63S, 2015 328i xdrive, 2008 Mercedes R-Class 350, 2009 Hyundai Equus
I might be totally wrong here but in my understanding, reduction in back pressure will allow easier flow or air and cause the engine to run richer since it was tuned with the backpressure of both primary/secondary cats and the mufflers in mind.
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2016 C63S AMG
more air and the same amount of fuel would cause it to run lean. Anyway I have a Chinese obd adapter with the torque app and a secondary cat delete from what I can tell the computer adjusts to keep the a/f the same.
Member
Joined: Oct 2017
Posts: 120
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From: Chicago
2015 W205 C63S, 2015 328i xdrive, 2008 Mercedes R-Class 350, 2009 Hyundai Equus
If its okay to run the car without a tune with catless downpipes by bypassing and tricking the ecu for a while, I am interested in going catless downpipes. How can I trick the O2 sensor? Also, Im interested in that Chinese obd adapter and the torque app. Can you please tell me what it does and if its applicable for catless downpipes?
Member
Joined: Sep 2016
Posts: 138
Likes: 14
2016 C63S AMG
If its okay to run the car without a tune with catless downpipes by bypassing and tricking the ecu for a while, I am interested in going catless downpipes. How can I trick the O2 sensor? Also, Im interested in that Chinese obd adapter and the torque app. Can you please tell me what it does and if its applicable for catless downpipes?
