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CF Airbox and Engine cover question

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Old 02-05-2010, 04:04 PM
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CF Airbox and Engine cover question

I've been considering changing the stock to CF, two reasons, first, I like the look, second, claims of HP increase in the range of 18-21hp and Torque increase: 14-18lb/ft.

MACarbon sells a Carbonio product for $1,850 plus shipping/tax and is pictured here in the attached link

http://carbonio.com/performance/bran...airboxkit.html

and has Dyno chart.

Renntech is the other vender and they sell for $2,795 plus shipping/tax (pictured in the attached). It's worth noting that Renntech's kit does not include the CF Engine cover.

I've bought product from both (CF Mirror's from MA Carbon and performance sound pipes from Renntech) and have been happy with both venders and their products.

Anyone have any opinions on either of these two products and/or could recommend another avenue I should be exploring?
Thanks
Todd
Attached Thumbnails CF Airbox and Engine cover question-clk-air-box.jpg  
Old 02-05-2010, 04:44 PM
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CLK 63 Black Series, 2009 S550, 2011 Range Rover Supercharged, BMW F800 GS Anniv Edition
The other avenue I'd explore (if you haven't already) is a tune. The increase in hp you will get with the airbox will hardly be noticable.
Old 02-05-2010, 09:03 PM
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I have the Carbonio airbox for almost 2 years and prefer it over the Renntech box when it comes to looks. The Carbonio has a bigger plenum than the stock box and will give you a little more power, combined with some BMC filters. However, it's not going to be a noticeable difference compared to stock...........one thing I'm certain, it looks way better than the stock box!
Old 02-06-2010, 01:03 AM
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Originally Posted by toddturbos
MACarbon sells a Carbonio product for $1,850 plus shipping/tax and is pictured here in the attached link

http://carbonio.com/performance/bran...airboxkit.html

and has Dyno chart.

Renntech is the other vender and they sell for $2,795 plus shipping/tax (pictured in the attached). It's worth noting that Renntech's kit does not include the CF Engine cover.
Just curious but other than the RennTech name what makes it $2,795 over Carbonio's $1,850? And that fact that the RennTech CF is not even full CF (as pictured) cover but only half?

Have you looked into Evosports CF airbox or is their CF Airbox the same as Carbonio?
Old 02-06-2010, 05:52 PM
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SMP, thanks for the feedback, I think I'm going to pull the trigger with the Carbonio airbox. Jame55, good question, not sure why Renntech is more expensive the Carbonio, especially without the engine cover, that and Renntech's air box isn't that clean of a factor fit and doesn't line up with the factory engine cover.

I'll post pictures of the install. Anyone know a cost effect vendor for the BMC filters and the correct model/size?

Thanks again for all the feedback.
Todd

Thanks for everyones feedback
Old 02-06-2010, 08:17 PM
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Originally Posted by toddturbos
...
Anyone know a cost effect vendor for the BMC filters and the correct model/size? ...
The airbox seems to come with filters.

It looks great under the hood!
Old 02-06-2010, 10:02 PM
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Originally Posted by DFW01E55
The airbox seems to come with filters.

It looks great under the hood!
The Carbonio box comes with a set of foam filters, which I don't recommend using, especially in CA. I tossed the foam filters and put BMC's in, in my opinion the best filters on the market.
Old 02-07-2010, 06:55 AM
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Originally Posted by JamE55
Just curious but other than the RennTech name what makes it $2,795 over Carbonio's $1,850?
The same reason that a set of headers for a V8 American car is less than a grand & a set for a Black is 5 grand.

You're getting hosed because the venders know that you have deep pockets.
Old 02-07-2010, 11:07 AM
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Originally Posted by Riley Martin
The same reason that a set of headers for a V8 American car is less than a grand & a set for a Black is 5 grand.

You're getting hosed because the venders know that you have deep pockets.
....it's also a matter of R&D costs for production of an item that will yeild far less volume than those headers for the American V8.

How many sets of headers will Renntech sell for the BS especially given they're not the only ones buiding headers for the BS? Probably a few dozen max vs. thousands.....

BTW Todd, great choice on the Carbonio air box. Look forward to your thoughts on it.

Last edited by user z478747; 02-07-2010 at 11:09 AM.
Old 02-07-2010, 01:28 PM
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Originally Posted by chuck z
....it's also a matter of R&D costs for production of an item that will yeild far less volume than those headers for the American V8.

How many sets of headers will Renntech sell for the BS especially given they're not the only ones buiding headers for the BS? Probably a few dozen max vs. thousands.....
I can agree with that up to a certain point. Will "Black" headers fit other C-Class models with the 6.3?

I've had long tube headers custom made & coated for less than $2,000.00. At $5,000.00, for shorty headers, that's just rape.
Old 02-07-2010, 03:23 PM
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Chuck Z, thanks, BTW, in case anyone cares, it's $1,950 not $1,850.

I'll follow up with pictures.
Todd
Old 02-07-2010, 09:23 PM
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08 SL55
Originally Posted by Riley Martin
I can agree with that up to a certain point. Will "Black" headers fit other C-Class models with the 6.3?

I've had long tube headers custom made & coated for less than $2,000.00. At $5,000.00, for shorty headers, that's just rape.
I agree that they are terribly expensive but if you want headers for your BS are you going to have a set custom made? How would you ever know if they actually produce any power or not? Thanks but I'll stick with someone/company who's done all the R&D and can backup with dyno results that they actually do produce something other than just noise. Think you'll get these custom made headers to fit your BS (w/o mods to your BS) in high grade stainless for $2k? I seriously doubt it.

Sounds like you won't be puting headers on your BS?

I have them on mine and love them! My guy who installed them was quite impressed with the workmanship of them and part of his business is custom fabrication for Porsche race cars....

Here's mine:

Old 02-07-2010, 11:51 PM
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Chuck Z, those are sweet looking headers, which tuner did you purchase these from?

I'm considering the Renntech headers.

Todd
Old 02-08-2010, 05:27 AM
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In this day & age, it's amazing to me that MB bulids 1950's style log exhaust manifolds to be put on a high performance car.
Old 02-08-2010, 10:31 AM
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08 SL55
Originally Posted by toddturbos
Chuck Z, those are sweet looking headers, which tuner did you purchase these from?

I'm considering the Renntech headers.

Todd
They are Renntech headers. Here's a youtube vid comparing stock w/ the addition of sound pipes and then the addition of the headers:

http://www.youtube.com/watch?v=akW30NuKdiw

The portion of the vid with the headers is not very good b/c it was raining and not really a cold start like the first two. It barks much louder than the vid shows on a cold start.
Old 02-08-2010, 10:32 AM
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08 SL55
Originally Posted by Riley Martin
In this day & age, it's amazing to me that MB bulids 1950's style log exhaust manifolds to be put on a high performance car.
You mean like these:

Old 02-08-2010, 12:56 PM
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[/quote]

What kind of fine German engineer casts a section of elephant intestine & adds flanges to it?!?!?!?!?

We can now see what MB got from Chrysler.
Old 02-08-2010, 11:30 PM
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Wow, Chuck Z those Renntech headers are like a piece of art work and what a great sound too! You just cost me some $$, I think I'm going to have to pull the trigger and order a set from Korey w/Renntech.
Todd

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