N55 remap options

[DVandrews]

What is the current co census for remapping of the N55 twin scroll engine in the 335i/135i? Evolve, DMS, JB4? Opinions or real life experiences welcome

Thanks

Dave

[jimmsy]

I use a JB4 in my M135i. It works really well, is constantly developed, future proof for any mods you have planned, and has great support from the creater (lookup the N54 tech forums).

It's easy to fit yourself, and is 99.9% untraceable, you'd only have issues if your car went pop and BMW had a very thorough look at it.

[aeropilot]

DVandrews said:

What is the current co census for remapping of the N55 twin scroll engine in the 335i/135i? Evolve, DMS, JB4? Opinions or real life experiences welcome

Your options all depend on what year the car was made....?

BMW introduced a revised ECU with much more sophisticated encryption late in 2011 (from Oct ish IIRC) and any N55 engined car built after that cannot be remapped. None of the established tuners (DMS/Evolve/Cobb etc) have been about to crack this new ECU. Even Hartge haven't.

So, if your car is post Oct 2011, the only option is the official BMW Power Pack kit, or one of the piggy-back controllers that fool the ECU, such as the Burger Tuning JB4 or the similar Hartge unit which is of course more expensive.
If you car has DCT though there are potential issues with these piggy-back controllers and the DCT as the DCT software uses mapping data for teh clutch from the ECU which can't be changed by the piggy-back units resulting in poor shifts and clutch action.

If your car is pre-2011, then yes, Evolve or DMS would be my choice.

[DVandrews]

Manufacturing date is August 2011 , so it may be the early re programmable ECU. It is DCT. Thanks for information.

Dave

[aeropilot]

DVandrews said:

Manufacturing date is August 2011 , so it may be the early re programmable ECU. It is DCT. Thanks for information.

I see your not far from Evolve so they will be able to tell you if you're running the flashable ECU, you might just be OK with an August build
N55 flashes aren't cheap though as the ECU is engine mounted and involves quite a bit of labour time removing lots of ancillaries to be able to get at the ECU to remove it.