question on bov install?

135i_jaijai · 02-17-2011, 04:19 PM

was trying to get the ****** bov install to the 2009 135i, till a point when i need to remove the stock charge pipe, i actually found that mine is different than a lot of pics i saw compare to the other n54 engine. Mine stock charge pipe has a extra pipe and is connect to like a pump but that pump is not connect to anything at all? anyone has an idea what that is?

I took it out, and get the ****** bov installed, with the front of nipple on the bov connect to the engine and the back nipple of the bov connected to the DV at the back? is that correct, and for some reason i actually found that the sound of the bov is so tiny, hardly notice it at all, is there something that i miss?

here's the pic of the extra piping

ErvGotti · 02-17-2011, 06:11 PM

That extra pipe is BMW's "sound generator" that's on the 135i and not on the 335i. The install pics you've seen are more than likely for the 335i.

Impervious · 02-17-2011, 06:14 PM

Quote:

Originally Posted by ErvGotti

That extra pipe is BMW's "sound generator" that's on the 135i and not on the 335i. The install pics you've seen are more than likely for the 335i.

More info on this "sound generator?"

NihonX · 02-17-2011, 10:39 PM

It's possibly used to send sound into the cabin during acceleration.

Just a thought.

adrean8j · 02-18-2011, 02:14 PM

Yeah I was just reading another thread on charge pipes the other day and it mentioned this piece as well. It is just a sound resonator...throw it in the garage....

cadeucsb · 02-18-2011, 03:12 PM

Quote:

Originally Posted by adrean8j

Yeah I was just reading another thread on charge pipes the other day and it mentioned this piece as well. It is just a sound resonator...throw it in the garage....

As a sound resonator, what sound is it restricting?

604_e90325i · 02-18-2011, 04:31 PM

i don't know what that is at all lol, i searched the part # but it only comes out "generator"

honestly, i hate that extra piping, make it so hard to get the charge pipe out.

ErvGotti · 02-18-2011, 04:58 PM

Quote:

Originally Posted by Impervious

More info on this "sound generator?"

I'm not really sure how it functions, but BMW supposedly put it on the 135i to provoke a sportier engine sound in the cabin. Here's the link on real OEM third item down.

http://www.realoem.com/bmw/partgrp.d...22&hg=13&fg=20

adrean8j · 02-18-2011, 05:31 PM

Has been going on for years. It is similar to this thing seen on the new Mustang GT 5.0: http://blogs.insideline.com/roadtest...ired.html#more

02-17-2011, 04:19 PM	#1
135i_jaijai Private First Class 11 Rep 117 Posts Drives: 135i Cabrio LeMans Blue Join Date: Nov 2008 Location: Vancouver BC iTrader: (1)	question on bov install? was trying to get the **** bov install to the 2009 135i, till a point when i need to remove the stock charge pipe, i actually found that mine is different than a lot of pics i saw compare to the other n54 engine. Mine stock charge pipe has a extra pipe and is connect to like a pump but that pump is not connect to anything at all? anyone has an idea what that is? I took it out, and get the **** bov installed, with the front of nipple on the bov connect to the engine and the back nipple of the bov connected to the DV at the back? is that correct, and for some reason i actually found that the sound of the bov is so tiny, hardly notice it at all, is there something that i miss? here's the pic of the extra piping __________________ 08 E88 135i Cabriolet/Le Mans Blue/black boston leather/M sport package/Premium Package/Wind Deflector/6spd /Riss Racing Exhaust/BMC DCI/tinted head light/custom color grill/H&R race/koni yellow/z shift BOV/sebron OEM CF hood/19" SF-71
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02-17-2011, 06:11 PM	#2
ErvGotti Major 124 Rep 1,362 Posts Drives: 2008 135i 6MT Join Date: Jul 2010 Location: Aviano iTrader: (5) Garage List 2008 135i [6.00]	That extra pipe is BMW's "sound generator" that's on the 135i and not on the 335i. The install pics you've seen are more than likely for the 335i.
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02-17-2011, 10:39 PM	#4
NihonX Captain 63 Rep 901 Posts Drives: 2011 VO 1M Join Date: Sep 2008 Location: Antioch iTrader: (8)	It's possibly used to send sound into the cabin during acceleration. Just a thought. __________________ 2011 VO 1M
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02-18-2011, 04:31 PM	#7
604_e90325i Lieutenant 18 Rep 492 Posts Drives: 325i jet black Join Date: Sep 2005 Location: Vancouver iTrader: (1)	i don't know what that is at all lol, i searched the part # but it only comes out "generator" honestly, i hate that extra piping, make it so hard to get the charge pipe out.
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