Eisenmann Race Exhaust Videos W211 E55
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From: San Diego
2015 S212
Originally Posted by newton22
Actually, I believe you lose power due to very free flowing systems is because of a reduction in back pressure.
Taking your example, yes a narrow straw is too restrictive. However, you will notice that if you blow through a fat and large straw, you will lose your breath almost immediately. There isn't any pressure at all.
But I'm not 100% sure.
Taking your example, yes a narrow straw is too restrictive. However, you will notice that if you blow through a fat and large straw, you will lose your breath almost immediately. There isn't any pressure at all.
But I'm not 100% sure.
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From: THE Orange County, California
2024 C8 Z06- 2025 BMW CS- 2022 Porsche 992 GTS
Originally Posted by blackbenzz
I dont know about you guys but I think it sounds SICK! I bought my eisenmann race just for the sound, I didnt expect any kind of gain. But then again I'm N/A 
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From: Sugar Land, TX
BMW E39
Originally Posted by Vic55
Thanks bro, I would give up 15-20 hp for that sound anyday but again thats me. Its amazing in person- Ill see someone walking on the sidewalk; I go WOT and the look on their faces
I want to run open headers just for one day for kicks.
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'03 E55, Range Rover Sport Supercharged, Ducati 748R
Originally Posted by jangy
It is no typo. an exhaust needs to be tuned to give the max output. It is very similar to blowing air through a straw. Skinny ones restrict the flow, causing you to push harder to get good flow. Fat ones get so big that the air you blow just sits there. Since the job of the exhaust is to get the heat out, it sitting there is NOT a good thing. This is exactly the same argument I use to say that removing the resonator and replacing it with straight pipes helps.
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From: THE Orange County, California
2024 C8 Z06- 2025 BMW CS- 2022 Porsche 992 GTS
Originally Posted by chiromikey
i'm fully aware of the impact of exhaust tuning but i guess my misconception was that the eisenmann system WAS tuned for our cars.
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From: San Diego
2015 S212
Originally Posted by chiromikey
i'm fully aware of the impact of exhaust tuning but i guess my misconception was that the eisenmann system WAS tuned for our cars.
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From: San Diego
2015 S212
Originally Posted by Vic55
I can see where you are coming from- I guess they just made it so it fit the E55 but didnt do any true performance gain testing (not that any aftermarket exhaust would provide gains). Also my car has the post cats and resonators removed so the set up is more free flowing than it should be on a stock E55. I am sure the small loss in hp would be practically zero with the other restrictors back in but then the sound would be reduced.
I've seen many 55s with the Eis race setup and NONE sound anything like VIC55s. Hmmmm, maybe a little work on his intake side and the exhaust will begin to help??
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From: school west coast-Summer Internships Va and Bmore
E55 (for sale if the right offer comes along)...too many others to list
Originally Posted by Vic55
No I live down in the OC, must have a been a copycat 
Angela you need to get it out of your head that the differences that will affect performance. The difference is negligible at best- there seems to be a great desire to have the most powerful car on paper (via dyno) but as many of the well educated have stated, its what the car does with the horsepower on the street that counts.
Angela you need to get it out of your head that the differences that will affect performance. The difference is negligible at best- there seems to be a great desire to have the most powerful car on paper (via dyno) but as many of the well educated have stated, its what the car does with the horsepower on the street that counts.
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'03 E55, Range Rover Sport Supercharged, Ducati 748R
Originally Posted by Vic55
I can see where you are coming from- I guess they just made it so it fit the E55 but didnt do any true performance gain testing (not that any aftermarket exhaust would provide gains). Also my car has the post cats and resonators removed so the set up is more free flowing than it should be on a stock E55. I am sure the small loss in hp would be practically zero with the other restrictors back in but then the sound would be reduced.
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From: THE Orange County, California
2024 C8 Z06- 2025 BMW CS- 2022 Porsche 992 GTS
Thanks guys, I never guessed it would sound like that as it kind of was a work in progress. With the E55- just removing the resonators alone is worthless but if you take the post cats out then the sound comes alive. Then add in the Eisenmann Race and its crazy. The only thing more scary was if I had K2 which would have meant removal of the precats and that my friends would be Nascar loud IMO.
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From: Moscow, Russia
E55K
Originally Posted by Vic55
Sad but true, its not anything that you can really feel but the Eisenmann is too free flowing and the car lost back pressure. With the F/I engine a certain degree of back pressure is necessary. I think I may had some Magnaflow resonators installed to restore some back pressure but the loss is small so I may just leave it be.
Many respectible tuners offer Free Flowing mufflers for E55 but none of them remove Secondary CATS...your system is simply too free fliwing after primary cats...
and...Cory told ME that those things do not really affect E55 performance of E55, more restrictive part in HEADERs !!!
478 is still very good !!!
Anyways Eisenmann are the ones who make AMG exhausts, so they know everything about it and that is why their connecting pipes are smaller diameter to keep the pressure, I bet if you put secondary cats back, you will make more power...
I will have Kleemann Style headers installed with Primary cats deleted but I am thinking of keeping stock resonators or may be NOT
(what do you think ???) and defenetaly will keep primary CATS for back pressure !!!Expected numbers 450kw !!!
Last edited by E55 RUSS; Jul 21, 2006 at 11:35 AM.
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From: THE Orange County, California
2024 C8 Z06- 2025 BMW CS- 2022 Porsche 992 GTS
Originally Posted by Teck
Your car sound sick. I've heared a lot but that's the sickest one of all 
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From: THE Orange County, California
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Yeah the server they came off has been dumped so mod VRAA put them on google.
Here are some links (The sound is not great in these):
Taking off !!!
Leaving the lot
Another Launch
Drive by
Here are some links (The sound is not great in these):
Taking off !!!
Leaving the lot
Another Launch
Drive by
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From: United Snakes of America
German
Yeah the server they came off has been dumped so mod VRAA put them on google.
Here are some links (The sound is not great in these):
Taking off !!!
Leaving the lot
Another Launch
Drive by
Here are some links (The sound is not great in these):
Taking off !!!
Leaving the lot
Another Launch
Drive by
wow!!! I think Im in love....
