Mod to improve sound (free)
06-11-2009, 02:58 PM
#1
I am not sure how many of you guys have that foam engine cover thing on the underside of your hood that is supposed to silence engine sound as well as smother a fire I believe. However I noticed every loaner car I get does no thave that thing on it so I ripped mine off months ago and it definetly let more of the sound out that was suppressed by this. I also looked around online and sounds like most cars do not use these anymore. I believe it was more for sound suppression in the 5 series more than anything which explains why they did not have it on any of the 3ers loaners.
I suspect it also lets your engine work a tad cooler too by letting more heat escape since it is a pretty thick foam cushion.
Anyway just lets that beautiful sound more audible from either the I6 or growling V8
I suspect it also lets your engine work a tad cooler too by letting more heat escape since it is a pretty thick foam cushion.
Anyway just lets that beautiful sound more audible from either the I6 or growling V8
06-11-2009, 03:15 PM
#3
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the bmw exhaust note sounds good, the engines usually dont sound so great themselves. the ONLY reason i would take this off is to hear my turbos a little better. this is pretty pointless and counter intuitive for anyone else honestly. even with the TT on my car, i have no desire to hear a bmw engine noise any more then i already have to. again, the exhaust note is what you want to hear, not the clakity clak of a bmw engine
06-11-2009, 04:44 PM
#5
What are you talking about? You think it is the exhaust of your car that sounds good? No it is the engine sound of the air getting sucked in, especially with turbo's. Your exhaust is minimal contributory to the cool sound of a bmw
06-11-2009, 05:00 PM
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Originally Posted by Diamond' post='908406' date='Jun 11 2009, 08:44 PM
What are you talking about? You think it is the exhaust of your car that sounds good? No it is the engine sound of the air getting sucked in, especially with turbo's. Your exhaust is minimal contributory to the cool sound of a bmw
guess i wont ask your advice when buying exhaust. if i need to amplify the sound of my valve tap, i'll PM ya.
although the CAI sound and turbos are cool. your statement was just way off par IMO
06-11-2009, 05:01 PM
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My Ride: 2008 550i sport
Originally Posted by Diamond' post='908274' date='Jun 11 2009, 05:58 PM
I am not sure how many of you guys have that foam engine cover thing on the underside of your hood that is supposed to silence engine sound as well as smother a fire I believe. However I noticed every loaner car I get does no thave that thing on it so I ripped mine off months ago and it definetly let more of the sound out that was suppressed by this. I also looked around online and sounds like most cars do not use these anymore. I believe it was more for sound suppression in the 5 series more than anything which explains why they did not have it on any of the 3ers loaners.
I suspect it also lets your engine work a tad cooler too by letting more heat escape since it is a pretty thick foam cushion.
Anyway just lets that beautiful sound more audible from either the I6 or growling V8
I suspect it also lets your engine work a tad cooler too by letting more heat escape since it is a pretty thick foam cushion.
Anyway just lets that beautiful sound more audible from either the I6 or growling V8
06-11-2009, 05:02 PM
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Originally Posted by -Mike-' post='908427' date='Jun 11 2009, 09:01 PM
Has anyone actually removed this? I read the referenced thread and didn't find anyone who pulled it off. I personally would be concerned if its there to give passengers extra time in case of a fire....I wonder if my car has this? Gonna check later....
06-11-2009, 05:15 PM
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My Ride: 2007 530i. Purchased 6/28/07. Titanium Silver Metallic, Black Dakota Leather, Dark Poplar Trim, Steptronic, Premium Package, Cold Weather Package, Bluetooth, Adaptive Control Xenons. 10/30/07 Added OEM 124s with 245/40/18 & 275/35/18 Michelin Pilot Sport A/S tires. Installed red Cal Covers� from BavAuto. 11/21/07 Added OEM all-weather floor mats (for winter, carpet in summer) and coat rack. 6/26/08 installed M5-style rear spoiler. 6/30/08 put on red reflectors. 8/22/08 Euro turn signal stickers applied. 3/20/09 Installed Shadowline Trim. 3/27/09 Added Matte Black Kidney Grilles from Trinity. 4/03/09 Installed Bimmian Shadow Matte Black 530i Badges. 4/04/09 Installed LED license plate lights from Trinity. 5/01/09 Installed Brabus Interior LED Kit and White Angel Eyes. 5/02/09 Put in Brabus 6K Fogs. 5/14/09 Removed charcoal filter. 5/15/09 Installed light smoke LED side marker lamps from Trinity. 5/21/09 Sprint Booster. 6/12/09 Painted exhaust tips flat black. 6/13/09 Pulled red Cal Covers and painted calipers low gloss black. 6/27/09 RPI Ram Air Scoop from Trinity. 8/15/09 Installed Brabus's silver invisibulbs front and rear. 9/24/09 Installed R-Dash license plate LEDs from Brabaus (John).
