BiTurboBenz

I'm looking to put the OEM quad exhaust on my SL600. The Eisenmann is too expensive. Does anybody know if there are any differences between the two exhausts because one is SC'ed and one has Turbos? Thanks in advance to all those that reply.

Bipasha493

the 55 sounds louder....deep throaty sound. where as the 65's exhaust tone is muffled by the turbos i believe?

Juice it

I think he means differences like would one not work on his car vs the other. How much does Benz charge for these stock?

BiTurboBenz

$650 each side for the mufflers/tips...they come together. So $1,300 plus installation.

Juice it

I would think the 65 would be the one to get since the engine set up would be the same. Either way the sound will be muffled by the turbos but you will get the look if thats what you are after. You will need to change the bumper as well I guess.

BiTurboBenz

The sound is perfect right now. I am going for the look, the rear bumper with the black mesh and quad tips looks like a work or art. I will be keeping the SL600 tails and badging, maybe a RENNtech badge to come in the future

AMG2GO

so you are willing to change the rear bumper, thats gotta be at least 1K, right? paint and installation by anyone competent, at least $800, right? The two mufflers are $1300, plus $300 installation, you are talking close to a 4K upgrade. On a 2005 SL600 that is still worth around 100K at least.... and you say the Eisenmann is "too expensive"? how much is it? I mean I got mine for $1400. And to me its a much better unit than stock. Its lighter, better build quality, much deeper sound.... and more power. If you want it quiet, get the sport.

I am not trying to be a smart ***, I am just saying look at what its all going to cost and how much your car is worth, spend the few extra hundred and it will be a great system. Also it will be DIFFERENT than stock, to me cars that are half 600 and half 55 are just kinda weird.... look at the rear end here with a quad eisenman and tell me this does not look good. You won't have to replace your rear bumper and this thing with the ECU is good for 50 H.P. (RenntechV12 is my source on that dyno figure).

hbluthi

I would definately think there is a difference between the stock exhausts since the engines require a different tune!

BiTurboBenz

$3788.25

AMG2GO

Are you joking? $3800?!!! No wonder you said what you said...

OK I just took a look at eisenhaus and it does look like there is a lot more involved to it than on a CL. Its $3500. It is a lot of money...

If you are doing the AMG, check the part #'s and see if they are the same. If you have to pick one, I would definitely say the 65 exhaust is the one you want.

Man this is very dissapointing because I was thinking of getting one for an SL myself...

v8plus4

At LEAST $800.00, and it won't be the factory applied nano-particle scratch resistant paint. Non-factory paint is never as durable as factory. Try to keep the front bumper stock, or you'll likely be covered with rock chips before you know it.

I agree that the rear looks better with the AMG bumper & tips, though.

E46M3ownerMBfan

That's the "retail" price find a dealer of Eisenmann exhaust and see what price they can hook you up with

http://www.eisenhaus.com/dealerloc.php

SLcharger

You got it all right. Turboes are a real disadvantage, when it commes to a good exhaust sound. The turboés exhaust turbine, sort of cut the sound in small pieces, whitch kills the sound, so you therefore normally see smaller or less mufflers on a turbo car. Also a turbocar need less backpressure from the exhaust system, so it also generally have bigger pipes.

AMG2GO

The guy to talk to is Neal at Euroteck. www.euroteckmotorsports.com

AMG2GO

HUH?!

BiTurboBenz

The SL600 sounds perfect from the factory. I had a CLK55 and don't need that loud, throaty sound. The V12TT makes up for that & more.

I just like the quad exhaust look with the SL55/SL65 bumper (the mesh on the back looks great). The SL600 sport bumper uses the stock ehaust with a black piece of plastic.

I think I will order the SL65 exhaust and that should fit fine since both engines are nearly identical.

SLcharger

Please excuse me, but i am living behind the mountain, so please explain to me, what you mean by HUH ?!

hbluthi

It basically means "What are you talking about?!"

SLcharger

Thanks.

SLcharger

Backpressure is a popular "frase" of a more complicated matter.

I will try too explain this in a popular way.

Under ordinary conditions, when the exhaust valve opens, the engine has to pump the leftover gasses into about 15 pounds of atmospheric pressure. However, if we can reduce the pressure behind the exhaust valve to below ambient, the engine can more easily and efficiently pump the leftover gasses out of the chamber. In effect, this is what a well-designed exhaust system does.

If you take a N/A productioncar, pull out the exhaust system, dyno it, you will see a lack of power and torque, compared with dyno on car with exhaust.

When the cam is overlapping the valves, the exhaust system helps pull ( gas inertia ) the left over gasses out of the cylinder, ( scavenging effect ) as well as the intake system helps force it in. This induction effect can be influenced by the cam timing, cam lift, exhaust system, intake manifold, headers, and cylinderhead ports, valves size etc. The effect of this push/pull system has its maximum at a certain rev, and that is where you have max torque.

If we take a pressurerised engine, ( supercharged/turbocharged ) like SL 55/65/600, this Push/Pull effect is not that important, since the air/fuel mixture is forced into the engine, and the gasses are pushed out again, during overlap, but a good pressurerised engine still takes advantage on this effect. The pipe diameter behind a T/C is bigger, since the T/C has taken some of the energy out of the gasses, the gasses volume has increased, they have cooled down, velocety is smaller, they need bigger pipe too get out, without creating too mutch backpressure.

In Nascar, they calibrate the exact lenght of the exhaust pipes in a dyno, where the specific fuel consumption is established, and if not perfect, the pipes are either shortend or elongaged, until the right figure apears. ( put simple )

If pull effect is too good, ( less backpressure ) air/fuelmixture is drawn out into the exhaust pipes, giving flames and poor fuel economy, if pull is less, ( too mutch backpressure ) gasses will be hold back in cylinder, and the engine will not crank out the max horsepower.

AMG2GO

can you explain this part? because a gas's volume increases as it is heated and decreases as it cools...

AMG2GO

You made a rather general statement which I do not believe to be true in every case... I know what you were trying to say now, with your lengthier explanation. I did not mean to come across as rude, please don't take it like that. I was literraly just asking for an explanation.

SLcharger

You got it all wrong. I am not an American, so i am not familliar with your way of slang and shortening senses. It was ment as a joke, so no offence ment. I have to appologize for my part.

SLcharger

Right, but you must take into account that the T/C is a restriction, and therefore there will be a pressuredrop over the exhaust turbine. When pressure drops, gas expands, when gas expands it cool down further, and will need bigger pipe, not to cause further backpressure.

AMG2GO

Right... OK thanks for the explanation.