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yes you can connect at the ecu. that is why i connected at the ecu. ive had ethanol sensors on these cars longer than anyone. just put the ZT box in the compartment where the master cylinder is. no issues. theres literally no reason to tear apart the inside of the car. do NOT solder wires...

he is, but has mainly just been doing machining and engine work now moreso than the turbo kits and etc that he used to do.

nice, very reliable 2.5L in those. i used to tune those a lot and boost them. If you're a modder of the SVT, you may be familiar with one of my buddies. Owner of Nautilus Performance.

One thing you guys need to know about the JB4 and why you shouldnt push the car too hard on JB4 without a flash backing it. Is because without a flash, the ECU runs stock timing and fueling targets. JB4 cannot adjust fuel and timing targets. Stock fuel and timing is fine for stock boost...

SVT?

Winter car, 335xi, stock twins and direct port nitrous (N54)

i havent personally used motul, but i hear its pretty good.

no its not universal. Ecutek needs special treatment.

No..not right now. Has to be sent to Russia for the unlock at a minimum.

oh ok, gotcha. no problem

my unlock does not support Ecutek, every other platform yes, just not Ecutek. Ecutek software doesn't recognize manual unlock. You need to send to someone with BFlash to unlock for Ecutek You're in Texas..... hit up my buddy Steven Kan at PRT performance for the Ecutek unlock. He is in FOrrt...

yea, OBD flash without the clone is the new thing now. BM3 and MHD can as well once unlocked in russia.

do you need them or no?

i mean, sure i can get the harnesses. i never priced them though, im a dealer for ZT. just never looked at price of harness. but i just looked they are $65 total for both.

yea, jb4 doesn't do real flex fuel. its basically a boost controller. but if you wanted a sensor just make sure your mis is right thats fine. but you need to be careful running ethanol with no tune.

i dont usually keep spare harnesses. looks like you need both with this, the main power harness and the sensor harness, correct?

yes sorry, i havent been active in a couple weeks. but im trying to come back on combat any misinformation posted and help people out more. just been busy. Marin is cool, so you should be fine. dont hesitate to reach out if you need anything

depending on where you get the service done, some offer an OTS on the ecu if one doesnt want to pay for the full unlock and clone. but OTS maps are not good, because depending on who you get it from, you will be plagued with limp modes. and would have to send ecu back to russia for any further...

i notice you have a 2021, is yours an early 2021 ecu or locked ecu? only reason i ask is because if you cant flash the car that changes your options.

you can use any flash platform and achieve the same results. very large misconception about that. you can run big turbo, port injection, and whatever you want on any of the flash platforms as well. how a tune performs on any platform, solely depends on the capabilities of the tuner tuning...