myc43amg

In another 300 miles my C43 will have 100,00 miles,yikes!
The stock muffler has never been changed so I want to get a newer one. I would like one that is not louder than the stock one (I did remove the resonator).

- Which muffler do you have or suggest?
- Will the muffler give the car a little power and better mpg?

rlee02135

for universal, most people go with Magnaflow, although they are a bit loud.

for a quiet axle-back exhaust, try Remus or Supersprint.

a muffler alone will not give you any HP...

SaMaS

no hp gains from muffler I use AMG muffler they are free flowing all you need, if looking for more sound resonator delete or sec cats delete should help you... good luck...

myc43amg

So all the advertising that flowmaster and others make are false/lies??
What Im concern about is this. my car will soon have the 100,00 miles. wouldn that original muffler be filled with all the exaust junk from all thise miles?

Would you guys just leave that muffler on, and if yes for how many more miles? I would think after so many miles a muffler would be so dirty on the inside that it would be taking away some HP and MPG. This is not true?

silence

i would not change your factory muffler at this point or really at any point unless you want to change the way it sounds (unless you do go forced induction- although even then it's somewhat debatable)

edit- the gains shown by flowmaster and others are against much more restrictive mufflers than the stock one on your car.

Dr. C36

Samas this is true for your W210 E55 AMG but NOT the earlier AMGs. I know for certain E55 AMG has straight through b/c I"m the one that proved that, the C36 for sure has been proven NOT to be straight through. The only one in question really is the C43, if someone would shine a light down their exhaust and take pics to confirm then we'd know for sure when the transition occured between free flowing & restricted baffle designs.

anyone up to doing that?

Dr. C36

you actually have this backwards. Flowmaster mufflers are NOT 100% free flowing design, they are a sound cancelling baffle design. Magnaflows are 100% free flowing perforated core mufflers and nothing else on the aftermarket flows as good as they do for both the universal and their all-in-one catback mufflers.

silence

i don't see where i said anything about flowmaster vs. magnaflow. although both do make a wide range of mufflers from street to race only applications.

regardless, now that you brought it up i don't believe one would see ANY difference whatsoever in performance between one of the baffle type flowmasters and a magnaflow. It takes real modifications not just a slightly fancier muffler to make gains. Of course at some point things do need to be opened up enough to take advantage of other gains.

ProjectC55

No need to question the C43 muffler it's just like the CLK55 and E55 muffler except the E55 and CLK 55 have two muffler inlets to my one big 2.75"inlet! And I still have it on my car.

Dr. C36

ok, so you shine light down the muffler and you can see ALL the way through (perforated core)?

If so that means C36 was the only AMG with out true free flowing design. I'd love to see a picture of it if possible.

ProjectC55

Only way I could find that out is if I see one on Ebay and tell someone to purchase it. And I can tell you this muffler sure aint slowin my car down. Ask my friend in his modded SRT8

Dr. C36

there has to be one non-lazy C43 owner on this forum that is willing to get a flashlight and take a pic down their exhaust tube to see if its 100% perforated, very simple task.

silence

if only i cared

W211 BEAST

I use... AMG. Let me ask you a question... If you buy a Pateke Phillipe, do you change the band? Dont F with perfection.

jordanst2

Hey omey, what happened to your E55 headers....?

Dr. C36

They are almost done. I have put them as priority number one. I want to make sure they are perfect and able to sustain but NA and supercharged engines (requires more heavy duty welding & flanges and etc so it took some extra time. They are on the way very soon.)

Dr. C36

magnaflow will flow better than flowmaster, flowmaster is more for sound. Old muscle car folk & Truck guys, use them b/c they don't know any better. The ONLY thing flowmaster DOES make better than Magnaflow is their Y-pipes, definitely an amazing high flow design. I always use flowmaster Ys with Magnaflow components on all my bmw track cars.

silence

In my experience guys with muscle cars know a lot more about modding cars than bmw owners- but to each his own.

ProjectC55

I agree with Silence,Who cares!!!

Vardar

I always wanted to say something like that! Darn it!

Dr. C36

so nobody wants to know for sure if its a free flowing exhaust? wow why did you guys even buy AMGs then? Don't you want to maximize performance out of your cars?

Someone take a flashlight, shine it down the tips and take a pic. Takes 30 seconds. The C43 guys can't be THAT lazy.

ECTurboGSX

I've been holding my tongue as I've read this thread for the last few days. I am 100% sure that the engineers at AMG know more about exhaust tuning than you do. You will see virtually no performance enhancement from changing the muffler because it is rarely the most restrictive feature in the exhaust or intake. Ever seen the inside of a catalytic converter? Secondly, bigger is not always better. Unless you have computational fluid dynamics software and you have modeled the flow of gases in the exhaust system, you cannot definitively say what the best arrangement is. Otherwise, everyone could run a 4" school bus exhaust and make 'mad powah'. An engine is an air pump and it has a certain curve that represents its volumetric efficiency. This efficiency relates directly to the power output. You change this curve anytime you mess with something and some times you help it and other times you hurt it. There are a whole host of other issues that come into play when determining what makes for the best exhaust. Everything is compromise and I promise that you will get more performance by ditching those fancy leather seats and putting composite buckets in than you will by cutting the AMG muffler off and putting a Magnaflow muffler on.

PS: You're making assumptions a little too quickly about AMG owners considering of the guys you are arguing with, one has a supercharged 4.3L and the other has a 5.4L swap. But no, we don't like performance.

myc43amg

Ok, I took some pics the best I could. And YES the muffler is a straight through from what I can see. I'm not a pro but look at the pics and let us know what you think.

myc43amg

pics no show on post. trying again...

silence

more or less what i'm too lazy to type out (there's more to be said about some related things too, but no point in it)