Looking for a reputable tuner to flash the ECU (Z4 3L E85)

M

MisterM52

Member
Site Supporter
Hello you wonderful people of the Z4 forums!

I have here a 2003 3L 6 Speed manual Z4 that has a lot of modifications done, I am happy to list them all ofcourse. Mainly I am looking for a Tuner who can flash the darn ECU (likely MS45 I reckon). I have headers, full exhaust (Eisenmann), O2 sensors (downstream) deleted. Has a cold air intake port (but filter that sits inside the box). Engine has some 60K miles. I need someone who is reliable, responsive, I have ISTA / INPA and cables to access the ECU and such.

I had contacted a few, getting in touch for a remote tune seems to be rather difficult. So any recommendations are welcome.

Should I had posted in the wrong forum, please feel free to move it to the right one.

Thanks alot!
 
Talk to forum member [ref]ivanchen1211[/ref] who I believe has remote flashing capability and seems to know what he’s talking about.
 
MisterM52 said:
So I reached out to him and he says he does the N52 and such not the M54 which is what I have. :(
Click to expand...
Hey! I made an account specifically to tell you this, but I have a 2001 330i (3.0 liter M54) and I flashed the ECU myself using this wiki: https://www.ms4x.net/index.php?title=Main_Page

It's a little confusing to navigate, but if you have the Siemens MS4X ECU, you can find maps for your car and flash it yourself using free tuner software (I think I used the free version of TunerRT) and their open source MS4X flasher, along with an OBDII data cable that you can buy on Amazon for a few bucks. Give it a look see and if you're up for the challenge, I'd recommend tinkering with it yourself. Makes you feel like fast and furious 😎 Let me know if you have anymore specific questions!
 
MisterM52 said:
Hello you wonderful people of the Z4 forums!

I have here a 2003 3L 6 Speed manual Z4 that has a lot of modifications done, I am happy to list them all ofcourse. Mainly I am looking for a Tuner who can flash the darn ECU (likely MS45 I reckon). I have headers, full exhaust (Eisenmann), O2 sensors (downstream) deleted. Has a cold air intake port (but filter that sits inside the box). Engine has some 60K miles. I need someone who is reliable, responsive, I have ISTA / INPA and cables to access the ECU and such.

I had contacted a few, getting in touch for a remote tune seems to be rather difficult. So any recommendations are welcome.

Should I had posted in the wrong forum, please feel free to move it to the right one.

Thanks alot!
Click to expand...
Have you tried superchips?
 
You must log in or register to reply here.
Back
Top Bottom