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Carbon Airbox: Gruppe M and RennTech

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Old 03-07-2011, 09:07 AM
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C63 AMG Black Series
Carbon Airbox: Gruppe M and RennTech

Hi all,
New member here. Just picked up my C63 Performance Pack Plus (P31). Its a UK spec car. I've owned it for less than a week and already am thinking about some mods. I blame this forum.
I've been doing some searches on carbon airbox and found there are 2 types. One is the Gruppe M-type which seems to replace the front part. The second is RennTech which replaces the back part. Is this correct?
If so, can both types of airboxes be used together? Or is it one or the other type thing?
Also if it can both be used together, has anyone done this? What type of gains can be expected?
And do the pattern of the carbon fiber match?
Thanks.
Old 03-07-2011, 09:22 AM
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For $4,000.00+ for those 2 parts I'd get a tune instead.. So u could actually feel the difference
Old 03-07-2011, 10:36 AM
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Originally Posted by dodger63
For $4,000.00+ for those 2 parts I'd get a tune instead.. So u could actually feel the difference
totally agree
Old 03-07-2011, 11:02 AM
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I thought we already established that a tune on a P31 car is useless? Or are you referring to new long tubes in which case I totally agree :-)

Ken
Old 03-07-2011, 04:15 PM
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Renntech C63 AMG; Samoa Orange R8 GT 115/333
So... Can you put both of them on at the same time or will it not work?
Old 03-07-2011, 05:23 PM
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You can put both on the same time! It will work great together. I no renntech is working on a groupe m style piece also. Ask dadsc63 I think he has some knowledge about those renntech products! But for the price there are much better options for performance! But if your looking for 2 extremlly overpriced pieces of carbon fiber you are exactly right . But they do work!
Old 03-07-2011, 06:14 PM
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What I wanted to know is if both can be put on together. It seems interesting that Gruppe M felt that the front part was restrictive and so designed a larger air "scoop". Whereas RennTech thought the front was ok so they redesigned the back part.
If both can be used together, then the improvement to the air intake should be amazing. I understand that it is very pricey. But that's due to the carbon fiber. If someone were to make both parts in FRP, then the price would be much less for potentially big power increases.
Just my thoughts.
Old 03-07-2011, 06:19 PM
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Originally Posted by chchart
What I wanted to know is if both can be put on together. It seems interesting that Gruppe M felt that the front part was restrictive and so designed a larger air "scoop". Whereas RennTech thought the front was ok so they redesigned the back part.
If both can be used together, then the improvement to the air intake should be amazing. I understand that it is very pricey. But that's due to the carbon fiber. If someone were to make both parts in FRP, then the price would be much less for potentially big power increases.
Just my thoughts.
As I said above renntech is designing their own "front peice" The whole intake isn't that free flowing!!
Old 03-07-2011, 07:29 PM
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Renntech C63 AMG; Samoa Orange R8 GT 115/333
Originally Posted by dodger63
As I said above renntech is designing their own "front peice" The whole intake isn't that free flowing!!
I guess I'll wait to see what RENNtech comes out with
Old 03-07-2011, 07:39 PM
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https://mbworld.org/forums/c63-amg-w...intake-gp.html

You can see it here!
Old 03-07-2011, 07:48 PM
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Renntech C63 AMG; Samoa Orange R8 GT 115/333
Originally Posted by dodger63
Haha I was part of that ... I got it installed 2 weeks ago I think... I gotta put some pics of my car up!
Old 03-07-2011, 07:53 PM
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Originally Posted by Tyler1012
Haha I was part of that ... I got it installed 2 weeks ago I think... I gotta put some pics of my car up!
In the one picture it shows there "front peice" looks better then groupe m design IMO
Old 03-07-2011, 08:08 PM
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Renntech C63 AMG; Samoa Orange R8 GT 115/333
Originally Posted by dodger63
In the one picture it shows there "front peice" looks better then groupe m design IMO
OO, just checked it out... Anymore info on it?
Old 03-07-2011, 08:14 PM
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Originally Posted by Tyler1012
OO, just checked it out... Anymore info on it?
Not from me hit dads up I'm SURE he has some info on it..
Old 03-08-2011, 07:59 AM
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i've just installed the RT CF airbox over the weekend and i can feel the difference in sound and response in the bottom end of the acceleration.. haven't had the chance to go full throttle yet.. love it!

now what would be interesting is the front intake from RT!
Old 03-08-2011, 02:38 PM
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CLK AMG Black Series
GruppeM do extensive R&D and achieve good gains with their kits. Most independent testing has shown them to be

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