2014c300

Matt and I discussed my situation because I did not feel the difference right away. It took my ECU until the next day for me to notice any real difference. Today I am on day three and my wife and I took the car out again today to get some more time on the ECU with the tune. Very noticeable today. In fact I did a quick impromptu 0 - 60 run using the very un scientific lap timer method on the AMG display on the dash.

Much better results than day 1 with the tune. 4.89 seconds. That is just with me hitting the button and flooring it and hitting the button again as soon as I saw 60 so I know not very accurate but if I got 4.89 doing it that way, the car must be much faster than that at this point.

I am now very satisfied with my tune.

to the other poster about the factory non AMG exhaust. I agree completely I am not hardly getting any crackles and pops at all with the standard exhaust, it drives me nuts so my next purchase will be the AWE Touring Cat back exhaust. Hopefully that will satisfy my desire to hear crackles and pops. I am hoping either this month or next to order it and have it installed.

tmoneyC450amg

From my understanding the crackles and pops are the result of the software tune/programming from mercedes and not hardware based. Do you think mercedes muffled the crackles and pops on purpose for vehicles that do not come with the PE package? If so, an exhaust might not make a difference. I hope that I'm wrong though, I'm just speculating here

2014c300

Further speculation. From a business standpoint why waste time / money creating a different software program for vehicles that happen to not have the AMG exhaust.

I do not think Mercedes would spend more money to muffle crackles and pops just because an exhaust was not ordered with a vehicle. That would be a stupid business decision.

Also, I doubt that there are very many customers with a factory AMG exhaust that opted to replace the already upgraded AMG exhaust with AWE’s exhaust. Simply because the factory AMG exhaust costs almost as much and AWE’s version lacks valvtronic and command integration like the factory AMG exhaust. If I had the AMG exhaust I seriously doubt I would consider replacing it. Would not make sense.

so the point is most likely most of the cars on YouTube with AWE cat backs most likely came without AMG exhaust from the factory.

However, we will find out soon enough. I plan on ordering the AWE Touring Cat Back exhaust system in the next month or two.

Nickm7

Does anyone know if AWE is working on a valvetronic exhaust system for the c43 sedan? I have the factory sports exhaust and want to upgrade to the AWE touring however I could wait a little longer if this was possible, I like the idea of having the option to open and close the valve's. all other exhausts like this are just too expensive.

2014c300

I too would be willing to wait for an aftermarket Valvetronic cat back with command integration. I like the idea of having the button on the console. However I highly doubt this will ever happen. My salesman told me about my car while it was still on the trailer enroute to the dealership. Their were 5 C43’s and the other 4 were already sold. Unless I wanted to special order and wait then I had to take what I got. The AMG exhaust was the only option that I wanted that my car did not have. I wanted Premium 1, pano, Nav, rear view camera.

Heads up display and the larger infotainment screen would have been nice but not worth the extra price in my opinion.

Even if a catback comes available with valvtronic and integrates into the car like the factory exhaust, I am sure the price would be ridiculous.

I will opt for for the touring AWE and keep it at that.

munis

As far as I was told, the pops, bangs and crackles are heavily software controlled. That is why none of the after market exhaust videos pops and crackles as much as the AMG PE does. There is a software change Mercedes does for the PE for sure when you select that option. Because what it is the excess gas going to the exhaust and that is purely ECU Controlled.

Check my exhaust video and compare it to any of the aftermarket ones, you will see that nothing sounds like that.

18bora

I think it's a combo of software and exhaust design because you can't just dump excess gas into the exhaust without killing the cats. With decatted exhaust, its' not hard for a tuner to do, just add a little fueling at low loads/high rpm and retard the timing. It gives you spectacular flames out of the tail pipe and the extra fueling helps cooling the combustion chamber. However, too much fueling will wash the cylinders.

2014c300

We will find out in 3 weeks. Just ordered AWE Touring exhaust.

2014c300

AWE Touring Crackles and Pops

tmoneyC450amg

All C450s crackle and pops without the PE exhaust because we were never given that option. I think we had our own version of PE that came standard. Not so sure about non-PE C43s though.

You might have to search for nonPE C43s that have that crackle and pop..

tmoneyC450amg

Here is a video of my car when I got it installed at AWE TUNING

2014c300

I certainly hope that, respectfully, you guys are wrong. I will be furious! I spent all this damn money because I wanted the AMG sound. The only option my car did not have that I wanted was the performance exhaust, so I compromised thinking I could get AWE to replace that sound for me.

I have spoke about this with my dealer And they are clueless. How was I supposed to know this about a car that is less than a year old and essentially with this configuration never seen before and /brand new to the market.

I would have certainly chosen to wait and special order my car had I known that Merced’s uses different software in cars with PE. So damn stupid!

So I just spent $1800 for nothing on AWE exhaust is what you guys are telling me? Keeping in mind I purchased the exhaust soley to get the crackles and pops that I had been drooling over the past two years watching video after video.

2014c300

Thanks for the video but that’s a 450. They are claiming software in 43’s without PE is different even different than the 450’s

So all these videos on YouTube that write “C450/C43” are wrong. There are differences from software to the AMG 4Matic and the new 9speed trans.

If this new exhaust doesn’t give me crackles and pops I’m going to flip the f out

And yes I have the AMR tune. Exhaust sound did not change, car is just quietly faster. Speaking to AMR, I was told their tune enhances the crackles and pops. This was not the case. So it sounds like even AMR is not aware of these software differences.

munis

With absolutely no intention of bursting your bubble or to demean your purchase, but none of the aftermarket exhaust sound anything like the original PE for the C43. I will uploading a couple of more exhaust videos and I am sure you will agree as well.

If the exhaust sound was really important, I really think you should have waited and ordered your car. Plus most of the ordered cars are one of a kind considering you have the freedom of choosing amazing color and rims combos.

2014c300

I agree. However Myself nor the dealer were aware of this at the time.

JGreen76

For what it is worth, I have popping on my non-PE C43.

2014c300

Some good news thanks

Do you have AWE exhaust?

Lionel_Hutz

I have driven two loaner C43s, both of which were non-PE. They both had the "crack" on Sport+ upshifts and the off-throttle popping also in Sport+. Not nearly as loud as a car with the PE but it is there.

Nickm7

I'm in the same position as you right now. I have not purchased the AWE touring yet but was thinking about it. I really wish I had the PE. so stupid. When you install yours please right up a review. Am looking forward to hearing it from you to help me figure out if I should buy it or do a muffler delete.

Gungaslow

AMR tune has some serious *****.. my car is so much faster judging by the butt dyno!! I can't believe the night/day difference this tune makes.. it also smooths out the shifting from the transmission!! Love this

2014c300

Just a quick update. Now that I have had my AWE cat back for a couple of months now and it has broken in. I have noticed some crackles and pops on decel.

There is a video in another thread where I was able to achieve a 3.8 second 0-60 with my wife in the car and a half tank of gas in Drive not manual.

Car ran a 12.3 @ 112 mph. I was hoping for a bit higher MPH but I ran the car in D or auto not manual.

Other people are telling me that shifting the car manually produces better results and higher MPH. I do not know why this is but I wont argue with it until i try it. I am up for trying anything.

Hopefully if the weather is nice, I will try to find some time to make another 0-60 video by myself to see if i can beat my 3.8 second time. I may not have time this weekend as I have a 15 page paper due in one of my grad courses. But i will try.

I really was hoping for an 11.9 at the track. I am running the stock air filters, I have read on here a guy who did run an 11 second quarter mile in a c450, no video that I could find though, was running K&N filters. I have a set but took them out and put in new stock replacements. I can always throw the K&N's back in and do some testing with the VBOX to see if there is any difference in the numbers.

threefirs

What's your 60' time?

2014c300

1.88 was best for a 12.3

2017Amgc43

I just got my c43 last month. i do have the amg performance exhaust on. I'm willing to do a amr tune in the future. Is there anything I need to upgrade before the ecu tune? For example, those hardwares like intake, downpipe or cooler. I just don't want the powerful tune to damage the engine or other thing.And another question is you really get 3.8s from 0-100km/h? That's hella fast. Almost a sec beyond the stock c43!

2014c300

You don’t have to upgrade anything.