Recommendations for MSS54 to MSS54HP conversion

[heinzboehmer]

Not sure I would personally ship my DME all the way to the UK for this. Surface mount soldering is not the easiest thing to do, but also not something that only a select few can do. If you're decent at through hole stuff, chances are you can do surface mount as well. Any competent electronics shop should be able to do it easily, especially since there's no BGA components to deal with (those are actually a pain to do).

OP, you could also just source the parts yourself and take it to an electronics shop. Just need two EEPROMs, a couple resistors and BDM headers. This thread has the parts list somewhere: https://nam3forum.com/forums/forum/s...p-csl-h-bridge

After that, you'd need to find a shop that can do the BDM flash to get software onto the new chips. It's possible that some BMW specialty shop near you can do it. Or you could just buy the programmer and do it yourself: https://nam3forum.com/forums/forum/s...ech-galletto-4

[WestBankM4]

IIRC, there were a few people that posted about sending their ECU for the conversion and getting another ECU back that was not their original one (exchange service?) and the there was some issues with the tune where the car did not run correctly. Also, certain options, such as EWS delete or modified cam profiles, were not applied correctly. Soldering chips and putting the base CSL software with stock cam profiles on an original working ECU should not cause any issues on a car that was working fine in standard form.

Interesting, I've always leaned towards Hassan and this probably finalizes that decision between Kassel and HTE. Another reason I'm opting this route is because I'm planning on shooting over to Jordan to visit family soon, I want to take a week and visit Lebanon as well. Once I'm there I've been in contact with Hassan, so hoping to meet and get all of the physical stuff completed in person.

I haven't ordered my airbox yet, but I'm just taking it slow, no rush with the engine mods just yet.

[Mr.wReckless]

I thought HTE was predominantly a tuner? I had mine sent to the UK, but to Carphonics, https://www.carphonics.co.uk Reach out to the guy there for the physical DME work.

Regards