Renntech AirBox
Thread Starter
Member
Joined: Jul 2011
Posts: 147
Likes: 10
From: CT
'06 CL55 AMG, '08 SL65 AMG, '09 e550 4Matic, '13 Range Rover Sport Autobiography
Renntech AirBox
Read a bunch of threads about Renntech's CF airbox. Was wondering if anyone can provide a first hand account if the airbox upgrade is worth it. Was looking at the following: http://www.renntechmercedes.com/www/node/56
Can anyone verify if you actually get any HP gains and are there any downsides whatsoever in installing this airbox on a CL55?
I know it's expensive, but money aside, I want to hear from other members who have installed this and what their experience has been and if there is any concerns I should have with installing it?
Can anyone verify if you actually get any HP gains and are there any downsides whatsoever in installing this airbox on a CL55?
I know it's expensive, but money aside, I want to hear from other members who have installed this and what their experience has been and if there is any concerns I should have with installing it?
PLATINUM SPONSOR
Joined: Jun 2008
Posts: 3,834
Likes: 65
From: Texas
2003 CL55
I dyno tested both ways (stock VS ren CF box) and could not find any HP gains. Box looks nice and fit well, but still uses the same stock size filters. It does smooth some air flow out in the neck area but again, seems like stock size filters are the real bottle neck.
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E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
www.ultimatepd.com
instagram @ultimate_pd
facebook.com/ultimatepd
E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
www.ultimatepd.com
instagram @ultimate_pd
facebook.com/ultimatepd
Thread Starter
Member
Joined: Jul 2011
Posts: 147
Likes: 10
From: CT
'06 CL55 AMG, '08 SL65 AMG, '09 e550 4Matic, '13 Range Rover Sport Autobiography
Is it common knowledge and does everyone agree that the Rennetch airbox, regardless of the size does not increase HP?
