What are these boxes under the car?

jasonn · 08-09-2007, 04:33 AM

I'm looking at the eisenmann exhaust system and was wondering what these boxes were. Anyway you can remove them? I know that non 335 has it further out to the side but what exactly are these? I was planning on trying to fit the 3D design rear diffuser on but these would only get in the way if I were to go quad.

HyperM3 · 08-09-2007, 08:37 AM

I think underneath the car, everything was designed there for a purpose. It could play into aerodynamics. Why would you want to start messing with that? I cant imagine those weigh anything so youre not saving anything by removing them. Just ignore it.

1clean335i · 08-09-2007, 08:37 AM

those black pieces are just covers. behind that plastic cover on the drivers side is where your carbon canister/dmtl pump, etc are. on the passenger side is the area where your battery sits..

de.abeja · 08-09-2007, 01:46 PM

Those function to reduce air drag behind the rear wheels. The Honda Civic VX was built as one of the most fuel efficient cars of its time and behind the rear wheels you could buy OEM bolt-in covers much like the ones pictured above.

ward · 08-09-2007, 01:48 PM

wow!

jasonn · 08-09-2007, 03:30 PM

I wasn't exactly talking about removing them but scoot it 2-3" over for clearance issues. But I got it on what is behind those.

1clean335i · 08-10-2007, 07:41 AM

Quote:

Originally Posted by jasonn

I wasn't exactly talking about removing them but scoot it 2-3" over for clearance issues. But I got it on what is behind those.

i just told you in my other post....

08-09-2007, 04:33 AM	#1
jasonn JDM Slut 143 Rep 4,233 Posts Drives: v Join Date: Feb 2006 Location: FL iTrader: (12) Garage List 2014 PORSCHE CAYMAN [10.00] 2013 BMW X1 [9.00] 2014 BMW X5 xDrive35i [9.00] 2013 PORSCHE 991 [10.00] 2007 BMW 335i [9.08]	What are these boxes under the car? I'm looking at the eisenmann exhaust system and was wondering what these boxes were. Anyway you can remove them? I know that non 335 has it further out to the side but what exactly are these? I was planning on trying to fit the 3D design rear diffuser on but these would only get in the way if I were to go quad. Attached Images Last edited by jasonn; 08-09-2007 at 04:37 PM..
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08-09-2007, 08:37 AM	#2
HyperM3 Too many Alex's, from now on, call me Beaufort 355 Rep 6,188 Posts Drives: See Sig Join Date: Feb 2007 Location: Lawrenceville, NJ iTrader: (8)	I think underneath the car, everything was designed there for a purpose. It could play into aerodynamics. Why would you want to start messing with that? I cant imagine those weigh anything so youre not saving anything by removing them. Just ignore it. __________________ 13 HD FatBob 17 A4 Glacier/Black 1st Edition/Pre+/Sport/EurocodeTMD/Racechip 16 S6 (gone),14 S6 (gone),14 S6 (gone),13 S6 (gone),10 S4 (gone) 07 335i(gone)
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08-09-2007, 08:37 AM	#3
1clean335i Perf BMW mag issue 147, 159 432 Rep 6,799 Posts Drives: Project Estoril Join Date: Feb 2007 Location: Miami, FL iTrader: (31) Garage List 2013 335i M-sport [0.00] 2011 X5 xdrive35i M ... [0.00] 2009 335i M-sport [0.00] 07' 335i Sedan [0.00]	those black pieces are just covers. behind that plastic cover on the drivers side is where your carbon canister/dmtl pump, etc are. on the passenger side is the area where your battery sits.. __________________ '13 Estoril Blue 335i M-sport *Don't PM me!* Message me here- http://www.facebook.com/ProjectEstoril
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08-09-2007, 01:46 PM	#4
de.abeja First Lieutenant 5 Rep 301 Posts Drives: 335 sedan Join Date: May 2007 Location: San Diego iTrader: (0)	Those function to reduce air drag behind the rear wheels. The Honda Civic VX was built as one of the most fuel efficient cars of its time and behind the rear wheels you could buy OEM bolt-in covers much like the ones pictured above.
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08-09-2007, 01:48 PM	#5
ward Major General 159 Rep 6,158 Posts Drives: F Join Date: May 2005 Location: T iTrader: (0)	wow!
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08-09-2007, 03:30 PM	#6
jasonn JDM Slut 143 Rep 4,233 Posts Drives: v Join Date: Feb 2006 Location: FL iTrader: (12) Garage List 2014 PORSCHE CAYMAN [10.00] 2013 BMW X1 [9.00] 2014 BMW X5 xDrive35i [9.00] 2013 PORSCHE 991 [10.00] 2007 BMW 335i [9.08]	I wasn't exactly talking about removing them but scoot it 2-3" over for clearance issues. But I got it on what is behind those.
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