I want to share my experience and process with AMR Performance. Just yesterday I got back my ECU from them. First of all, I researched many tuners and came across AMR. I reached out to their online customer service and Matt responded. Being how busy they are, Matt took the time to answer every question promptly and their customer service was really the reason I went with them. The other reason is they have C43/C450 in their own garages and that made me feel real comfortable. In my opinion, no other tuners dedicate more time to these vehicles than them.
When Matt called, he went over the process and sent me instructions in removing the ecu. In addition, he said there was a promotion going on and I took advantage of the great deal. Last, he said any updates such as the trans and fuel that I resolve them with the dealer before I send out the ECU. That level of service I really appreciated the heads up and commitment with their customers.
After I reinstalled the ECU, I have read in this forum that it needed a few days to learn and adjust. At first, the car felt smoother, and after 20-30 mins of driving, I felt with my butt dyno the car was coming alive. The pull was harder thru the rev range. The pops and crackles were all there and the car felt plain smoother throughout the rpm. I reached out to Matt to confirm if there was something I didnt do right and he sent out instructions for me to try a complete ECU reset. The car came much more alive after the reset and I cant wait to drive it tomorrow. My car is now a beast and I couldn't be happier. The car reacts much smoother and shifts are now smooth. I didnt do any 60 mph times or any other testing. I just want to share my experience with my new tune and AMR's customer service.
AMR's customer service is absolutely the best.

 

 

Thanks for the compliment. I did see that thread and trust me they are very busy. All I can say is give them a call and they are happy to address some of the questions that were posed on the other thread you provided. Matt reached out to me this morning (545am PST), and asked how it felt during over the weekend.

 

 

Busy charging people $3200 and not able to reply? just lol.
Happy that you are happy though

 

Chris, we are ecstatic to hear that you are enjoying the tune! It was our pleasure to assist you. We are always focused on keeping our clients happy and offering the best possible service and product.

Anyone that has contacted us directly with interest in the tune has been answered. You are asking a question regarding a proprietary feature that we implement in our upgrade. You are not interested in utilizing a full ECU tune anyway, so I don't see why it would matter to you. The people in the thread that you have linked, have contacted us directly and I have personally spoken to them.

You are not a customer of ours nor do you have any intent on being a customer of ours as you have stated in multiple threads. We would appreciate you not trolling our threads as well as our customers threads in an attempt to cause unnecessary conflicts/arguments.

 

I'd consider your tune as I am impressed with your results, however, the price is insane. I'd be happy to switch for let's say $1500, but not for $3200.
I might be wrong and you are getting hundreds of customers willing to pay $3200 to gamble with their car reliability and warranty.

 

 

We have been invested in Mercedes Benz platforms for over 20 years. We have multiple achievements as well as thousands of clients equipped with our software upgrades and have been on this specific M276 platform since its first release. Anyone that was interested in the upgrade contacted me and I addressed all questions. As I previously mentioned, our coding is proprietary. I am not sure why you are in a positive review thread questioning features of a tune that you do not plan on purchasing.

 

I wasn't asking for specifics on how to use (or how it's even possible), I was simply interested on how safe or not safe it was for the drivetrain in burnout mode. Also interested to know when more info on turbo upgrade will be available.

 

 

While I understand the inclination to cherry pick what you do and don't respond to, but doing so does not equate to quality customer service, or instill a sense of confidence in the decision to mod. I would say most here understand and accept a certain amount of risk that comes with bumping up the power via tuning, but that risk is more or less marginal in the grand scheme of things. Enabling a feature that's completely counter to normal operation and wear & tear (burnout mode) is not marginal.

I'm sure you'll be quick to point out my comments of excessive price on these options in the other thread, but that doesn't mean that's a forever stance. What if you have a big sale that you've spoken of? My inclination now is to pass given the lack of transparency on the burnout mode because "Hey, so and so hasn't been transparent on this, now I'm wondering about that and that." Whether or not "I'm your customer" is irrelevant. I was genuinely interested the functionality, as many have stated still are. "Proprietary" is a bunk response. No one is asking for the line of code you inserted so they can steal your mod.

 

 

 

 

 

 

Here I was thinking of getting my C43 tuned when the warranty expires. Hmmmm these threads are informative and interesting.

 

So is this the official answer or not? I'm still curious....

 

Thank you for the review and sharing your thoughts! It was a pleasure and if there is anything you can do for us, do not hesitate to ask!


Thank you!



Not giving an answer does not qualify as "lying". No one has lied and we are far from "sleezy desperate tuning house". That is not a nice comment at all to say to any company. We have been in business for over 20yrs and our customers are very happy (see OP)

I am shocked you made such a comment, if you honestly thought this way you wouldn't have messaged us .

The ECU sends signals to the TCU. Instead of arguing I would recommend doing more research on the differential and transmission, especially the electronics, as our developers and software engineers did. Food for thought.

We have gone through this same situation when they said certain things can not be done with this platform.

There was the argument that the car can not run 11s, once done, arguments started until other company's were able to do it, then it was "Okay".

Then there was the argument that this platform can not have a 3.3-3.4 0-60mph, we spent time and now our customers are able to do this.

Then there was this platform can not "launch hard" and/or does not have "launch control". We developed it and now all of our customers enjoy it.

Then there was the argument, even done by you, DOWNPIPES do not make power, NOW all of a sudden, downpipes are worth it and do make gains on the vehicle.

We can even go down to the most basic argument, down memory lane, being one of the original companies to work on this M276 platform since its release when the topic was "how is AMR making more than 60hp thats impossible". Now, most brands make at least that.

This argument will always go on until "your favored tuner" and/or "your favorite company" develops it, then suddenly its "okay" by you.

Just because others have not done something does not mean it can not be done.





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I've been following this thread and am looking for a straight forward answer, does the burnout hurt the C43?

Please stop the back and forth attacks. This thread will get locked if it continues.

 

 

 

I am hoping that AMR can at least answer if the "burnout mode" hurts or does not hurt a cars transmission and/or drive train. Given the 31/69 fixed ratio i cannot see how it is safe to have a car at a standstill while the rears spin. This car can do a burnout by simply pressing the brakes to the floor and then gas, is that what AMR considers "burnout mode"? If we are speaking of modes shouldn't modes be switched back and forth with different maps? Not just consistently on every mode? Maybe the terminology is mixed up on AMR end? Not sure. But it would be nice to hear from them to just address the issue. Then again, i am sure they know what can happen if they provide false information and sell a product that they know will cause damage down the line, at least i hope.

 

All, with any tune, there is a risk, no matter what tuner you go with and we all know this. As I said in my first post, please give them a call and discuss their features then determine if this is the right tuner to go with. I went with AMR not because of a specific feature but their customer service and attention to their customers. The second part was their dedication to our vehicles and their in-house technical capacity in doing all of the features that some of you are suspicious with. To me, those features are secondary but to know that not only they perform tunes with other MB cars but to other mfg's and still have 5 star reviews, that confirmed it for me. Last, their dyno charts are somewhat comparable with other tuners too so we all have the choice in selecting which tuner to go with and if it isnt AMR, that is ok. Stick with the one you feel what is best. AMR has a wonderful product, and there are many happy customers, like me.