Whats the differences between the Renntech Air Box and the AMG air box in regards to cost, installation, and performance (gain in HP?)??? 
Renntech Air Box
Thread Starter
Super Member
Joined: Oct 2007
Posts: 566
Likes: 7
From: Maryland
E55
Renntech Air Box
Been a while since i posted on here. just to let you guys know wot i have done the past few weeks after the deleting of my resonators, I have ordered a renntech carbon fiber air box and i'm going to put my greens filters in there as well as the thermotec heat shield on the bottom of the box and maybe the tubes. My car is in the shop right now getting the evo sport underdrive pullies installed. I'm trying to close this deal with this guy for his his 19in sevas s stars staggered 19x8.5 F, 19x9.5 R. Let me know wot u guys think about the sevas on the 209's. ALso if anyone interested i have the amg air box, tubes, and bottom half cover for $450
Senior Member
Joined: Feb 2005
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From: orlando, florida. Dr.Phillips, UCF
04 CLK 500, 07 GSX-R 750, S 550, 09 Jeep GC
i also have a CLK 500 like yours, does the AMG air box just slip in place of the standard factory one?
If it does, and you can put up a few pics i'll move on this today.
If it does, and you can put up a few pics i'll move on this today.
Thread Starter
Super Member
Joined: Oct 2007
Posts: 566
Likes: 7
From: Maryland
E55
the renntech air box is not for sale i just found one after searching for a while. It should be here on monday or tuesday of next week. the renntech airbox is carbon fiber and renntech states gains of 20 hp, but most say from 10hp to 15hp. amg airbox has gains of 5 hp as stated by other members. the amg air box just slips right on. the amg air box includes 2 k&n filters for a lil more hp and mpg boost. the renntech im going to put in my greens filters.
Last edited by omar26; May 15, 2008 at 09:08 AM.
Senior Member
Joined: Feb 2006
Posts: 487
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From: Vaansterdaam, BC, Canada
W209 CLK
Cost wise I think the CF Airbox is around $1k depending where you look. It's not a moving part so the wear and tear is pretty non existant and if you find someone willing to sell it, they usually ask for near NIB prices.
Installs the same as your regular airbox.
The main difference is when you open up the airboxes, the Renntech box is hollow; where as the MB box have baffles to direct airflow. Without the baffles, the box is able to have less restricted airflow and greater volume of it.
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Joined: Mar 2008
Posts: 1,423
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From: Hampton, GA
CLK500 SPORT
the renntech air box is not for sale i just found one after searching for a while. It should be here on monday or tuesday of next week. the renntech airbox is carbon fiber and renntech states gains of 20 hp, but most say from 10hp to 15hp. amg airbox has gains of 5 hp as stated by other members. the amg air box just slips right on. the amg air box includes 2 k&n filters for a lil more hp and mpg boost. the renntech im going to put in my greens filters.
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Thread Starter
Super Member
Joined: Oct 2007
Posts: 566
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From: Maryland
E55
No sorry its not for sale. I put the amg intake bak on my clk500 and the renntech on the sl500. I have a wholesale acct with mercedes n got it for way cheaper than list, so if u know sum1 in ur area with a wholesale acct u can save 2-300 dollars
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Senior Member
Joined: May 2008
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From: Columbus, OH
2003 CLK500
Has anyone tried to modify their factory airbox, by removing the baffles? I haven't had a chance to look at mine yet, but wouldn't this assist in maximizing the airflow like the Renntech box?
