[minulache]

Hi guys,
As the title states, does any of you have a stage 1 from MHD on a stock, no modifications N55 with PWG?
Is it worth it? Any idea how much HP it makes? (I'm interested mostly for 91oct and 93oct).
Also, if you have some dyno numbers that would help alot.
I know it has been discussed many times but most of the results show 1+ or 2, with modifications, E85 etc
Thank you in advance!

[wrevilo]

I do.

MHD is really powerful and has helped me identify some air leaks and fueling issues on my car along with being able to apply the OTS maps easily. Once my issues are able to be resolved it will enable easy comparison, but even with them Stage 1 feels like it has noticeably more torque.

[minulache]

Thank you very much for the reply. Good to know. I also want first to check that everything is alright with the monitoring app and then go forward. I was thinking to upgrade the FMIC to go to the 1+, it should also be a positive mod for the car.
By the way, what problems did you have with the air leaks and fueling issues?

[jmnew911]

I also have this setup on 2013 e93. MHD stage 1 with only a drop in K&N filter and a vrsf chargepipe. I think the tune provides a noticeable difference from stock. I always use 93 octane.
There is some great information here. There is an article on all the mods and the horsepower gains from those mods.
https://bmwtuning.co/bmw-n55/

[minulache]

I also looked over the article, I really liked how comprehensive it is. The chargepipe is already taken care of, intercooler is next. I don't want to go overboard with catless DP etc because the whole idea is for the car to remain mainly stock so no emissions problems or with the authorities

[wrevilo]

Originally Posted by minulache

Thank you very much for the reply. Good to know. I also want first to check that everything is alright with the monitoring app and then go forward. I was thinking to upgrade the FMIC to go to the 1+, it should also be a positive mod for the car.

By the way, what problems did you have with the air leaks and fueling issues?

My car felt like it was not as fast as when I first got it and economy has been declining. Additionally, I had slow cold starts.

MHD logs helped identify boost leaks that a smoke test confirmed on the pipes leading to and from the turbo. The cold start issue is a symptom of the HPFP failing and since replacing starts are as expected. MHD also exposed shadow codes relating to the LPFP and LPFP regulator so I replaced those also.

[minulache]

Thank you very much for the input. Next, I need to do my research on spark plugs, to see exactly what to get because I see there are mixed reviews everywhere, including the gap.
Then, the rest will be full maintenance including coils and changing oil in the transmission and after that I will just for the intercooler and MHD

[wrevilo]

I replaced the spark plugs and stuck with the stock plugs. I think they are sufficient for Stage 1 and Stage 1+

[minulache]

I was also thinking to go for the OE BMW plugs because I saw that with Bosch and NGK it's quite hit or miss