[Zero335]

Hi all,

just wondering if any 335 fellow members here have any recommendation for a tuner / mapper on N54s in the North West UK?

any good places to recommend, please let me know.

Thanks !

[Saif2018]

Originally Posted by Zero335

Hi all,

just wondering if any 335 fellow members here have any recommendation for a tuner / mapper on N54s in the North West UK?

any good places to recommend, please let me know.

Thanks !

You don't necessarily need to take your car to have it tuned.

If you have MHD, you can get OTS maps directly and flash it, alternatively you can get a Custom tune by Wedge, Motiv, V8bait etc

Tuner sends you a base map, you run logs and send it back for revised maps, this goes on until the map is dialed in for your car.

[Zero335]

Oh wow, I didn't know this! I've been doing some research into what to get, looks to me is either JB4 or MHD in the UK ? what you would recommend and is it really that easy ? i am quite careful when it comes to tuning and i wouldn't want to mess up a map haha

thanks for your advice though!
Do you know where is a good places to get the parts?
the Piggyback tuning devices, de cat down pipes / charge pipes and mid section de cat pipes?

[Saif2018]

Originally Posted by Zero335

Oh wow, I didn't know this! I've been doing some research into what to get, looks to me is either JB4 or MHD in the UK ? what you would recommend and is it really that easy ? i am quite careful when it comes to tuning and i wouldn't want to mess up a map haha

thanks for your advice though!
Do you know where is a good places to get the parts?
the Piggyback tuning devices, de cat down pipes / charge pipes and mid section de cat pipes?

MHD, forget JB4

MHD app is available on Android and IOS

Get the MHD WiFi adapter as well.

Before you start tuning make sure you have done all the maintenance, no leaks, charge pipe upgraded to a metal one, plugs and coils done etc

[Zero335]

thanks mate, really haha ok, do you have any links to get the MHD ?

also any recommendations place to get intake, charge pipe, decat downpipe, mid section decat, and coils? i know I need 1 grade colder plugs as well, (I've had other turbo cars)

Thanks man, appreicate your help

[dyllan12]

Originally Posted by Zero335

thanks mate, really haha ok, do you have any links to get the MHD ?

also any recommendations place to get intake, charge pipe, decat downpipe, mid section decat, and coils? i know I need 1 grade colder plugs as well, (I've had other turbo cars)

Thanks man, appreicate your help

I been using VRSP charge pipe, down pipes and intercooler and I bought my BOV from ebay

[Zero335]

thanks for the heads up.

what about the mid pipe in the exhaust following Downpipes, any off the shelve products to remove the 2x mid section cats?

any links on the Charge pipes or the MHD ? thank you

[Dave92N54]

Other than a full exhaust, no. The "midpipe" runs from the downpipes all the way to the muffler. If you have an E92 there is an xpipe welded in, E90 has a resonator. The consensus seems the best to do when removing the secondary cats is to cut them out and weld Vibrant 1792 resonators in.

[Zero335]

Originally Posted by Dave92N54

Other than a full exhaust, no. The "midpipe" runs from the downpipes all the way to the muffler. If you have an E92 there is an xpipe welded in, E90 has a resonator. The consensus seems the best to do when removing the secondary cats is to cut them out and weld Vibrant 1792 resonators in.

Thanks for this Dave! good idea, yes i prefer a quiet exhaust especially on cruise and low rev ranges, make noise at higher revs no problems and sounds nice too.

so i will probably leave the exhaust alone and get some of these resonators.
thank you very much ! is it only vibrant 1792 resonators that's best for this?
hmm i don't know how to weld stainless steel on to the pipe. will probably need to take it to a welder to do this.

[Zero335]

What would you recommend for 335i tuning, I am researching into this and would like to buy a piggy back device, there are quite a few options out there, what are you using / pro's / cons.

I've heard good things about the JB4. where are the mappers / Tuners in the UK for N54 Engines? any recommendations ?

Thank you!

[Zero335]

Originally Posted by Dave92N54

Other than a full exhaust, no. The "midpipe" runs from the downpipes all the way to the muffler. If you have an E92 there is an xpipe welded in, E90 has a resonator. The consensus seems the best to do when removing the secondary cats is to cut them out and weld Vibrant 1792 resonators in.

oh btw, what is the size of our 335i n54 exhausts is it 2.5 inch or 3inch all the way through?

[CarAbuser]

Originally Posted by Zero335

What would you recommend for 335i tuning, I am researching into this and would like to buy a piggy back device, there are quite a few options out there, what are you using / pro's / cons.

I've heard good things about the JB4. where are the mappers / Tuners in the UK for N54 Engines? any recommendations ?

Thank you!

This topic has been discussed thousands of times already, did you not look at any other threads in the forum? Saif already repeated it again for you.

[Zero335]

thanks well I did look but I'm keen to get others opinion. So is everyone is using MHD now? What about JB4 and also can MHD be custom mapped? does JB4 have the engine monitor functions as well? (this is a really good function and can monitor engine status)

reason for asking if the MHD can be custom map is from my experience of tuning turbo cars, every car / engine is different and to ensure engine is running healthy I like to take to experienced tuners for a remap and healthy checks from times (which is something I would recommend and again that's why asked for any recommendations for reputable Tuners / mappers for N54's. I am new to tuning n54s 335i and learning, but have plenty of experience over the years tuning turbos, which I am more than happy to help others whenever I can)

Also there's just 2 stage maps available to flash with MHD, what about after the 450bhp mark can MHD support it further in comparison to the JB4 or other available tuning Piggy back options?

This is a software flash with no hardware and it's off a smartphone to map your n54. I feel a bit iffy about this and I'm keen to see what others say, I would appreciate any constructive and feedback as this is important before I commit to buy tunable software / piggy back.

care to share what you use and experience etc?
Thank you!

[CarAbuser]

Originally Posted by Zero335

thanks well I did look but I'm keen to get others opinion. So is everyone is using MHD now? What about JB4 and also can MHD be custom mapped? does JB4 have the engine monitor functions as well? (this is a really good function and can monitor engine status)

reason for asking if the MHD can be custom map is from my experience of tuning turbo cars, every car / engine is different and to ensure engine is running healthy I like to take to experienced tuners for a remap and healthy checks from times (which is something i would recommend, i am new to tuning n54s 335i and learning, but have plenty of experience over the years tuning turbos, which I am more than happy to help others whenever I can)

Also there's just 2 stage maps available to flash with MHD, what about after the 450bhp mark can MHD support it further in comparison to the JB4 or other available tuning Piggy back options?

This is a software flash with no hardware and it's off a smartphone to map your n54. I feel a bit iffy about this and I'm keen to see what others say, I would appreciate any constructive and feedback as this is important before I commit to buy tunable software / piggy back.

care to share what you use and experience etc?
Thank you!

Realistically no local garage tuners will do any customisation for your individual car, the whole "every car is different" is a bit of sales bullshit. They all pretend to tweak values on their laptop but it's a bit like a DJ in a shit club, he presses play on his playlist then fidgets around with his headphones and assorted knobs to give the impression he's mixing in real-time. You're not going to get Norman Cook doing a DJ set at Yates in the same way you're not going to get an actual tuner working on your engine in a backstreet garage in Rotherham.


All the garage tuners that I've seen in the UK operate on a reseller model where they have a KESS or KTAG and use a central database of pre-defined maps which they pay a small price for then sell on to you for £300+. I've seen a few data files from these companies and they all use the same flash.

MHD is unnerving for some since it's "just an app" but it's the best platform available on the N54, the custom logic changes in MHD are things you won't see anywhere else and the OTS maps are OK. You do have the option of a remote tune which would truly give you some customisation. MHD is also the best device for monitoring engine data so you can keep an eye on the health of the engine even after the tune has been applied.

The JB4 is best forgotten about. It's old tech from a time before proper ECU tunes were available. There's no need for an external boost controller now, some people still use it for methanol injection control but it's utility is limited.

[Zero335]

ok now you are selling this MHD like sales BS...

I will still have to disagree with you about reputable tuners, I've worked with them and have built trust over time seeing them spend time and effort to take care of customers cars including mine own, mapping them from 1st to final gear and by the rev range right next to me on fully custom maps. that's why I am asking for N54 tuners recommendations and custom mapping solutions.

I do appreciate your knowledge on MHD and your confidence in MHD as a tuning solution for n54's. good to know MHD has remote tune - how does this work ? can you share more information about this?

I am curious to know what other owners on here use to tune their 335i's ... how many are using MHD and how many are still using JB4 or Cobber or other piggy backs?

I would be interested to get others opinions as well as the engine monitoring data functions... is this available on JB4?

Thank you

[Zero335]

Originally Posted by CarAbuser

the custom logic changes in MHD are things you won't see anywhere else and the OTS maps are OK

also what do you mean by this ? what exactly are the "Custom logic changes in MHD" and why is it only available in MHD compared to other tuning piggy backs or Software for N54s

do you have experience with their Stage 1 / 2 maps and how does the car run with them? how do you make adjustments with the remote tune maps in MHD?

Thanks

[CarAbuser]

Originally Posted by Zero335

also what do you mean by this ? what exactly are the "Custom logic changes in MHD" and why is it only available in MHD compared to other tuning piggy backs or Software for N54s

do you have experience with their Stage 1 / 2 maps and how does the car run with them? how do you make adjustments with the remote tune maps in MHD?

Thanks

There's 2 parts to tuning engines.

1) The typical "mapping" that involves changing tables that hold values the engine code uses. Like a table of setpoints for various functions.

2) Changing the actual code inside the DME. This lets you change how the DME behaves completely and allows functions like boost limiting by gear, removal of fuel cut rev limiters and the ability to target higher boost than the DME can support in the original code.

The second part is what separates the men from the mice. Custom logic changes are really difficult. The software section that MHD installs is bespoke to them, everyone else is stuck with a very old modified software section that was developed to bypass the signature checks but nothing more.

If you really want a JB4 or a tune from a man in a shed go for it. I'm not profiting from either, do what makes you happy.

[Zero335]

Originally Posted by CarAbuser

There's 2 parts to tuning engines.

1) The typical "mapping" that involves changing tables that hold values the engine code uses. Like a table of setpoints for various functions.

2) Changing the actual code inside the DME. This lets you change how the DME behaves completely and allows functions like boost limiting by gear, removal of fuel cut rev limiters and the ability to target higher boost than the DME can support in the original code.

The second part is what separates the men from the mice. Custom logic changes are really difficult. The software section that MHD installs is bespoke to them, everyone else is stuck with a very old modified software section that was developed to bypass the signature checks but nothing more.

If you really want a JB4 or a tune from a man in a shed go for it. I'm not profiting from either, do what makes you happy.

That I certainly agree with what you said, I am only interested in finding a tuning option that's reliable and safe.

as long as the software or piggy back is workable / mappable rather than just a pre loaded map of stage 1 /2, then it would be a solution. I am interested in keep the car running healthy with some good power. 500 - 600.

Thank you

[Saif2018]

Originally Posted by Zero335

thanks well I did look but I'm keen to get others opinion. So is everyone is using MHD now? What about JB4 and also can MHD be custom mapped? does JB4 have the engine monitor functions as well? (this is a really good function and can monitor engine status)

reason for asking if the MHD can be custom map is from my experience of tuning turbo cars, every car / engine is different and to ensure engine is running healthy I like to take to experienced tuners for a remap and healthy checks from times (which is something I would recommend and again that's why asked for any recommendations for reputable Tuners / mappers for N54's. I am new to tuning n54s 335i and learning, but have plenty of experience over the years tuning turbos, which I am more than happy to help others whenever I can)

Also there's just 2 stage maps available to flash with MHD, what about after the 450bhp mark can MHD support it further in comparison to the JB4 or other available tuning Piggy back options?

This is a software flash with no hardware and it's off a smartphone to map your n54. I feel a bit iffy about this and I'm keen to see what others say, I would appreciate any constructive and feedback as this is important before I commit to buy tunable software / piggy back.

care to share what you use and experience etc?
Thank you!

Have a read through this website...

https://bmwtuning.co/bmw-n54-mhd-fla...sepower-gains/

MHD is a flash tune, JB4 is a piggy back tune which requires backend flash to get the most out of it,

MHD doesn't have 2 stages, it has Stage 1, Stage 1+, Stage 2, Stage 2+

Stage 1+, Stage 2 and 2+ need supporting hardware such as FMIC, Downpipes

[Zero335]

Originally Posted by Saif2018

Have a read through this website...

https://bmwtuning.co/bmw-n54-mhd-fla...sepower-gains/

MHD is a flash tune, JB4 is a piggy back tune which requires backend flash to get the most out of it,

MHD doesn't have 2 stages, it has Stage 1, Stage 1+, Stage 2, Stage 2+

Stage 1+, Stage 2 and 2+ need supporting hardware such as FMIC, Downpipes

thanks for this info! good write up, what happens if i wanted to change the stock turbos and upgrade them? will MHD have maps for that or can the MHD be custom mapped?

thank you!

[Saif2018]

Originally Posted by Zero335

thanks for this info! good write up, what happens if i wanted to change the stock turbos and upgrade them? will MHD have maps for that or can the MHD be custom mapped?

thank you!

Hybrid turbos need Custom maps and yes, there are many tuners that can provide MHD custom maps, as stated Wedge, Motive, V8bait and others etc

[Zero335]

Originally Posted by Saif2018

Hybrid turbos need Custom maps and yes, there are many tuners that can provide MHD custom maps, as stated Wedge, Motive, V8bait and others etc

thanks for this, as long as I can do custom maps on MHD then I would try MHD out.

how long have you had it and ever had any issues with MHD tunes?
you guys seem to rate it quite a bit.

I just want to explore some more options and others experience with tuning n54s.

thank you