CarAbuser's N54 Tuning Services

SKsingleE91

New Member
Mar 28, 2025
4
3
0
Ride
2007 E91 335i manual RWD
Hello @carabuser , I'm interested in your services. I have some questions. Could you please send me DM, because I'm somehow not able to. Even though I followed the instructions...
 

Teswimz

New Member
Apr 23, 2025
1
3
0
Putting a formal thread up on here as a lot of people seem to ask about passing inspection. @doublespaces gave me permission, so for any admins I apoligise if this is in the wrong section, feel free to move it as we didn't discuss the post location.

My tunes are different to other offerings out there since I have full access to all the tables. Things like torque ramp rates are adjusted to make the car feel more or less responsive depending on customer requirement (Over and above what the "1M" throttle changes achieve), the full exhaust model is corrected for catless cars so that the exhaust pressure correction and catalyst diagnostic routines continue to function correctly. I also bring over updates from newer ROMs into the older vehicles like injection window timing and boost control changes. The focus is on driveability for my tunes, so no boost surge or unpredictable partial pedal response like other tuners.

MHD Custom Tunes:
Stock turbo: $400
Hybrid turbo: $450
Single Turbo: $550

CAFlash Custom Tunes (no MHD+ functionality):
Tunes are flashed with the CAFlash Android App, no license required so if you don't already have MHD this will save you money. This application uses a custom logic section and will not feature any MHD+ functionality.
Stock turbo: $400
Hybrid turbo: $450
Emissions tune: (Any turbo, stock, hybrid or single): $200
This is a stock power map that will ensure all required readiness monitors pass along with the CVN numbers matching the stock file. This will even allow single turbo users with the single bank modification to pass. No mechanical changes are needed to the car, so it saves you the hassle of a DPFix or swapping out exhausts.

Customers will get access to my app on the Google Play store for free so there is no additional cost other than the tune itself. I've been using my own app and logic now for a few years as I didn't like how the car drove with MHD so I put the effort into making my own.
This app will allow you to flash DME (Supports MHD WiFi adapter or USB cables), data logging, code reading and clearing and readiness monitor reading (To check all monitors are complete before inspection).
Also allows an optional EWS bypass for people needing a DME swap and don't want the hassle or expense of cloning the DME.

If interested, drop me a PM on these forums.
Hey ! Was referred to you for an emissions tune. I have a 2010 135i single turbo. Just let me know how you need to proceed. Thank you !
 
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2010e60

New Member
Jul 18, 2023
1
4
0
I also would be interested in an emissions tune for my ST 335is. I can't PM, so please reach out to me. Thank you
 
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jose325i

New Member
Apr 30, 2025
1
2
0
I need a hybrid turbo tune for a car with a reflex lite, new member here, so need to post this first before I'm able to send a PM
 
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Engineer

New Member
Nov 3, 2019
8
7
0
Ride
335i E92 2008 N54
Putting a formal thread up on here as a lot of people seem to ask about passing inspection. @doublespaces gave me permission, so for any admins I apoligise if this is in the wrong section, feel free to move it as we didn't discuss the post location.

My tunes are different to other offerings out there since I have full access to all the tables. Things like torque ramp rates are adjusted to make the car feel more or less responsive depending on customer requirement (Over and above what the "1M" throttle changes achieve), the full exhaust model is corrected for catless cars so that the exhaust pressure correction and catalyst diagnostic routines continue to function correctly. I also bring over updates from newer ROMs into the older vehicles like injection window timing and boost control changes. The focus is on driveability for my tunes, so no boost surge or unpredictable partial pedal response like other tuners.

MHD Custom Tunes:
Stock turbo: $400
Hybrid turbo: $450
Single Turbo: $550

CAFlash Custom Tunes (no MHD+ functionality):
Tunes are flashed with the CAFlash Android App, no license required so if you don't already have MHD this will save you money. This application uses a custom logic section and will not feature any MHD+ functionality.
Stock turbo: $400
Hybrid turbo: $450
Emissions tune: (Any turbo, stock, hybrid or single): $200
This is a stock power map that will ensure all required readiness monitors pass along with the CVN numbers matching the stock file. This will even allow single turbo users with the single bank modification to pass. No mechanical changes are needed to the car, so it saves you the hassle of a DPFix or swapping out exhausts.

Customers will get access to my app on the Google Play store for free so there is no additional cost other than the tune itself. I've been using my own app and logic now for a few years as I didn't like how the car drove with MHD so I put the effort into making my own.
This app will allow you to flash DME (Supports MHD WiFi adapter or USB cables), data logging, code reading and clearing and readiness monitor reading (To check all monitors are complete before inspection).
Also allows an optional EWS bypass for people needing a DME swap and don't want the hassle or expense of cloning the DME.

If interested, drop me a PM on these forums.
I cant seen to get this app on the play store. I doing the Hp800 with N53 head.
 

carabuser

Captain
Vendor
Oct 2, 2019
1,030
1
1,153
0
UK
Ride
Z4 35i & 335i
I cant seen to get this app on the play store. I doing the Hp800 with N53 head.

You can only see the app once you are added onto the customer list. It's done using play store IDs, I just keep it in closed testing so that I can restrict it for customers only.

I might produce some kind of OTS map in future and just make it a normal app with a small purchase fee, but for now the only people that can flash with it are customers with custom files from me.
 

Engineer

New Member
Nov 3, 2019
8
7
0
Ride
335i E92 2008 N54
You can only see the app once you are added onto the customer list. It's done using play store IDs, I just keep it in closed testing so that I can restrict it for customers only.

I might produce some kind of OTS map in future and just make it a normal app with a small purchase fee, but for now the only people that can flash with it are customers with custom files from me.
So I can wait for my Hp800 with N53 head set up and try you out. :)
 
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carabuser

Captain
Vendor
Oct 2, 2019
1,030
1
1,153
0
UK
Ride
Z4 35i & 335i
Updated the adaptation reset function to include all N54 relevant adaptations. I don't really see a need for most of them but added them for completeness.

If replacing O2 sensors or injectors it's probably useful to reset the Lambda, cylinder balancing and injection quantity related items. For a VANOS change you can reset the VANOS adaptations and the camshaft adaptations. But in reality all of them will gradually re-learn over time.

The only critical ones are the variant reset which allows you to clear all learned peripherals, so useful for manual swaps. The battery reset is just the usual one that all coding apps have to tell the car there is a new battery installed.

Screenshot_20250509-220541.png
Screenshot_20250509-220549.png
 

Engineer

New Member
Nov 3, 2019
8
7
0
Ride
335i E92 2008 N54
I
1. You won´t find a better tuner on this platform.
2. What cams will you be running?
This is what I love to hear. I decided to maintain stock cams. What are your thoughts on low compression pistons. aka 9.5cr , I was thimnking of going low compression forged pistons
 

carabuser

Captain
Vendor
Oct 2, 2019
1,030
1
1,153
0
UK
Ride
Z4 35i & 335i
For just low compression pistons the benefit is that we could push more timing since you typically see diminishing returns on boost with the restriction of exhaust manifold.

When it comes to compression ratio and head work, I don't mind admitting that @Hydra Performance is the man to consult.
 
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yoitsjay

New Member
May 12, 2025
1
2
0
I have an 2008 335i upgraded 17t turbos I have MHD I need a custom map to pass inspection