W211 AMG Discuss the W211 AMG's such as the E55 and the E63

Debating on headers? Thoughts? Also, possible Kleemann headers group buy?

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Old Mar 19, 2014 | 03:03 PM
  #1  
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'05 E55, '12 C63
Debating on headers? Thoughts? Also, possible Kleemann headers group buy?

My only power mods are 83mm supercharger pulley and eurocharged tune. I have been on the fence about headers for a long time now. How much power do these give and are they truly the big power adder for our cars. I also have basically a straight piped back from the primaries to the stock mufflers, so I'd be deleting all cats and afraid it might be too loud.

I am thinking to possibly pick up a C63 in the next year or two and sell the E55, but thinking if I get headers, that'll change my mind

Can the headers guys please chime in and let me know your thoughts?


Also, I wanted to email Cory and see if he could maybe discount the price a few hundred more if we can get maybe, 10 people for their headers?
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Old Mar 19, 2014 | 03:18 PM
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Blown 208 55 amg, 211 55 amg
I'm in for a group buy, if Cory gives the Ok!
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Old Mar 19, 2014 | 03:22 PM
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If I could do mods all over again, I would do headers and tune first and that likely would've quinched my mod bug thirst for the duration of ownership as I thought stock this car had plenty of power, if she stays consistent.

IMHO, headers should be the # 1 mod every E55 owner does to their car.

Having said that, I am debating whether I really need more power (I am quite satisfied and have been for several months now), but the headers do help quite a bit for cooling purposes, which is my main focus right now with the vehicle. If I can have consistent power without huge drops because of heat, I am more than happy with the power and acceleration as she sits.

With summer right around the corner, I am already dreading the 100* humid days when the car feels like a slug.


Side Note: The Kleemann headers are a bargain at their current price ($995 I believe), so getting Cory to come down might be hassle. Most other headers on the market are $2K +.
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Old Mar 19, 2014 | 03:34 PM
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05 E55 AMG, E320 CDI, Turbo E46 M3,IS300 2JZGTE,VQ35 Turbo Maxima, Mercedes 300D
I was gonna say their headers are already pretty cheap compared to many out there.

Originally Posted by ArmoE55
Side Note: The Kleemann headers are a bargain at their current price ($995 I believe), so getting Cory to come down might be hassle. Most other headers on the market are $2K +.
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Old Mar 19, 2014 | 03:51 PM
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Can't give any opinion on the kleemann headers but as far as noise goes as long as you have your stock mufflers its not much louder till you get on it.
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Old Mar 19, 2014 | 04:18 PM
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E55 AMG on Ethanol-Meth; 600rwhp BMW M5
Kleeman headers make very good power. We made 32rwhp gain on a pullied car by adding their headers and a retune.
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Old Mar 19, 2014 | 05:43 PM
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When I did my MBH I picked up either 46 or 48 whp. That was on a Mustang too.. They really do help with cooling as well.. Go for it, you won't regret it..
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Old Mar 19, 2014 | 05:57 PM
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I can let you know the difference in a few hours LOL
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Old Mar 19, 2014 | 06:39 PM
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I'd be interested in group buy for sure
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Old Mar 19, 2014 | 07:14 PM
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To be honest, i dont really like the build quality of my Kleemann Headers for my CL 55K. I bought them from the Headquarters in Denmark directly.
You see where it is made (possibly china?). It looks like the weld marks inside are rusted already. Its pretty edgy in there anyway with different pipe and join diameters, etc.
And the design of 2pipes into one anyway is not as good as the first design, where all pipes were similar length and joining one collector together.
Also around the ports at the flange to the head, it has some large obstructions because of mis-welding and the with 4 little weldspots pinned Kleemann sign looks just extremely cheap and made by a 5 year old.

The very long downpipes aren't any better either, especially the point were you connect them to the holder behind the gearbox, terrible fitment and welded at a wrong angle.
But the price was such a bargain IMHO that i bought them anyway and will try to fit them the upcomming months.

Some picture are here showing the obstructions at the ports: https://mbworld.org/forums/5891771-post123.html

Tell me what you think? I can do more photos if you like. Shoudl is end them back to Kleemann and ask for a refund or better finished ones?
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Old Mar 19, 2014 | 08:08 PM
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Went with MBH when I moved from my 180 to 195 pulley. I can't speak to gains just on them alone. I think they are great and can get a bolt up system with no fitment issues or just get the headers and have a shop finish the rest. I had just the headers and had BIP do the rest and delete the cats and all. Sound is nice and not obnoxious at all.
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Old Mar 19, 2014 | 09:13 PM
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05 E55 AMG, E320 CDI, Turbo E46 M3,IS300 2JZGTE,VQ35 Turbo Maxima, Mercedes 300D
I have MBH headers. I had some fitment issues with mine unfortunately. The rear O2s were put in the wrong location and hit the protective covering brackets. I just decided to plug them and not use the rear O2s.

These are however the best looking headers I have seen. The quality of the welds is unbelievable. They are steeply priced though.
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Old Mar 19, 2014 | 10:15 PM
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Originally Posted by ArmoE55

IMHO, headers should be the # 1 mod every E55 owner does to their car.
This^^^^^

I had Eurocharged long tube headers on mine and definitely have no complains.
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Old Mar 19, 2014 | 11:18 PM
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For $1K decent header, you can't go wrong.
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Old Mar 20, 2014 | 01:35 AM
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I'd be down for group buy aswell
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Old Mar 20, 2014 | 08:34 AM
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Originally Posted by ArmoE55
If I could do mods all over again, I would do headers and tune first and that likely would've quinched my mod bug thirst for the duration of ownership as I thought stock this car had plenty of power, if she stays consistent.

IMHO, headers should be the # 1 mod every E55 owner does to their car.

Having said that, I am debating whether I really need more power (I am quite satisfied and have been for several months now), but the headers do help quite a bit for cooling purposes, which is my main focus right now with the vehicle. If I can have consistent power without huge drops because of heat, I am more than happy with the power and acceleration as she sits.

With summer right around the corner, I am already dreading the 100* humid days when the car feels like a slug.


Side Note: The Kleemann headers are a bargain at their current price ($995 I believe), so getting Cory to come down might be hassle. Most other headers on the market are $2K +.
I couldn't have said it any better - I think all the AMG's should come standard with some kind of header. More efficient, lets the motor breath, better cooling, and a much better sound to boot.
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Old Mar 20, 2014 | 01:14 PM
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And I believe header provide a bit better MPG.
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Old Mar 20, 2014 | 02:20 PM
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Headers get my vote for first mod - best bang for your buck. Don't worry too much about noise if you keep your stock pipe. You will only notice a difference in the sound when you stomp on it, and even then, only in the high rev range. Nothing wrong with the factory MB pipe, your gains are all in replacing the factory restrictive headers. Just make damn sure you replace your engine mounts before you do your headers because they are a ***** the get to once your new headers are in place. If your engine mounts are even slightly worn now, your new headers will make them completely worn in a matter of months.
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Old Mar 20, 2014 | 03:32 PM
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Had my kleemanns installed, but mine aren't fully sealed around the collector joint and have leaks out the sides - any ideas here?

not sure if there is some type of crush collar that can be placed in between the header/collector to seal it up?


as many have stated - normal driving sounds damn near stock, I have my resonator removed so it's a little more sound but in general, I don't think my wife will notice much - until she gets on the pedal

I just need to get the 'pfffft' sound cleared up from those leaks first! haven't gone WOT yet

While I haven't experience a full WOT run yet, the power and torque is increased - pretty noticeable by how much less pedal is needed to do just about anything, from cruising, to a quick pass.
the S/C sounds like it is working more efficiently as well (if that can be audibly detected)

once I get it buttoned up I'm sure it will be amazing

maybe some type of gasket like this? I don't remember any gaskets in the header kit though...


Last edited by Toadster; Mar 20, 2014 at 03:50 PM.
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Old Mar 20, 2014 | 04:14 PM
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I always thought the 'pffffttt' sound was the sound of my supercharger blowing excess air through my exhaust? Had the same sound on my C32 when I did a full exhaust on that too. Both cars do it in the low rpm range, right before the V8 grumble starts. I forgot how amazing throttle response is.
I would ask for a few more opinions before targeting your gaskets because in my experience failed gaskets make a 'ticking' noise that increases in frequency with the rpm's?
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Old Mar 20, 2014 | 04:43 PM
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Toad,

You could just skip all the nonsense with those 3-hole style flanges which always seem to work loose, blow out gaskets, leak, etc. and just transition to a quality v-band setup now.

It's a bit more labor to weld on the rings, but the final effect should be 100% leak-free and virtually bulletproof for the life of the car.

-G
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Old Mar 20, 2014 | 04:57 PM
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05 E55 AMG, E320 CDI, Turbo E46 M3,IS300 2JZGTE,VQ35 Turbo Maxima, Mercedes 300D
+1 on the v-band comment. Easy to go together and take apart and no leaks. But not all v-bands are made equal also. The cheaper Ebay ones are not nearly as good as Vibrants/turbonetics etc .. for example.

If you just want to seal the gasket you have just use some Permatex Ultra gasket to seal off.
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Old Mar 20, 2014 | 05:03 PM
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i really want to pick up a set of the kleemanns but i've heard that they require a lot of custom work to install (flex pipes, mid section, cats, etc.)...can anyone comment on this?
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Old Mar 20, 2014 | 05:11 PM
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Welding is required with the Kleemanns. The cats (primaries) are deleted with the headers.
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Old Mar 20, 2014 | 10:16 PM
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+1 for group buy
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