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      02-12-2021, 02:39 AM   #1
replapla
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Drives: BMW Z4 E89 35i
Join Date: Dec 2020
Location: Turkey

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I can never find clear answers about FBO with MHD !!! !

I have a 2009 Model BMW Z4 E89 N54 35i Sdrive with DCT.(EU version)
My car has no trouble or error codes.There are only 3 things to change.
1.Eisenmann 2x90mm race exhaust mufflers and tips
2.No 2nd CATS.
3.stage 1 software from a local tuner

I have two questions, I will act accordingly.

1. I have another tuner's stage 1 software in my car.
Can I revert to original stock software with the MHD flasher? (I'm talking about the MHD Flasher N54 app being able to find the latest stock firmware for my car and install it on the phone.)

2. If the above question is yes, I will make the following changes to my car after returning to stock software
a) VRSF 5 "Stepped Performance HD Intercooler
b) VRSF Charge Pipe
c) Tial Sport Blow off valve
d) VRSF Race Downpipes (catless)
e) VRSF Aluminum Turbo Outlet Charge Pipe (2 ")
f) VRSF Oem location High Flow Inlet Intake (2 ")
g) VRSF Aluminum Oil Catch Can
h) VRSF Performance Dual Cone Intaket Kit

I do not want to do Custom Tune. Also, gasoline has a high octane rating in our country(95+), so I do not plan to switch to a fuel such as ethanol. I want to make MHD OTS Stage 2 +. I know that it is enough for Stage 2+ to do what is written in the a, d, h items from the list written above.
I think an upgraded car also needs the other additional parts listed above for the turbos and engine to be long-lasting and healthy. (Maybe I am wrong, I'm not an expert)

So, do you mind if I install the MHD Stage 2+ OTS map after doing the above modifications (all items)? Do I have a problem?

Thank you in advance for your reply.

Last edited by replapla; 02-12-2021 at 02:48 AM.. Reason: I've incomplete expression.
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