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BMW 3-Series (E90 E92) Forum
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DIY: 335i Exhaust Sound Mod. Better, and even easier than golf tee mod.
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12-26-2008, 01:16 PM | #199 |
aka Mike
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Switched silencer
In general I love the sound of the exhaust with this silencer disabled. There are times that I'd like it quiet though. And I don't want to get out, go to the trunk, and plug the dam thing in again. From my experience, highway driving is much quieter with the valve in operation. I commute in traffic a lot so the sound gets to much to handle after about 30min on the freeway - particularly at 60-70mph (2k rpm). I'm going to run cable and add a switch for the solenoid by the driver seat so I can turn it on and off. Has anybody else tried this?
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01-01-2009, 01:09 AM | #200 | |
First Lieutenant
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Quote:
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01-10-2009, 10:33 PM | #202 |
twinborific
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The biggest difference that you feel with this mod is when you start the car cold - then it REALLY roars. What's amusing, though, is when you shut off the engine, the left muffler still leaks smoke (whereas the right one remains closed) - prompting questions from people.
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01-10-2009, 10:40 PM | #203 | |
Colonel
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i have and its starting to get to my head haha
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01-15-2009, 02:47 PM | #205 |
I don't drive fast , i fly very low
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I've done it actually , it makes a really big difference ,, but as some people said , sometimes while listening to music and the exhaust sound a bit higher than normal , it's annoying abit .. I think I'll go back to stock ... specially if it's affect the feul consmp.
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01-17-2009, 05:03 PM | #206 |
Second Lieutenant
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Just did this on my E93 - I def notice the difference! Sounds meaner now
This should keep me happy at least until I decide to upgrade the exhaust Thanks for the DIY! |
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01-18-2009, 01:45 AM | #207 |
Captain
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i pull up the servo acurator somthing and still its closed on driver side ...
somthing wrong??
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01-28-2009, 06:27 PM | #210 | |
twinborific
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I'm curious why Audi doesn't do it like this. I wonder if BMW put on a larger exhaust, but closed off the valve on low RPMs to try to achieve both goals - low noise at low RPMs and high exhaust flow at high RPMs, whereas other manufacturers either go low noise OR high flow+noise?
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02-04-2009, 01:34 PM | #212 |
Private First Class
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Drives: M3 Coupe (2008)
Join Date: Feb 2009
Location: Houston
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Did the MOD while on my lunchbreak, it works allright
(sounds a little bit like my old 'Scooby STI' with Prodrive backbox fitted) |
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02-19-2009, 12:21 PM | #214 | |
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My Gruppe M intake will be more than enough "vroom vroom" to satisfy my ears. =) |
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02-23-2009, 03:22 PM | #215 |
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Did this mod about 3 weeks ago. Pleased with the results so far. I would say it's most pronounced during a cold start and when revs are just under 3000.
Keep in mind it's the same exhaust system, so you're not going to hear something completely different and it won't be loud enough to wake up the neighbors. It's about 10% louder at low RPMs. I did notice that my left exhaust tip now has soot, it was sparkling clean before Enjoy! I recommend it |
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02-25-2009, 12:11 PM | #216 |
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Drives: 2008 335i
Join Date: Feb 2009
Location: California
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Still curious what the long term effects are?????? I'm afraid to try it, don't want to jack anything up. How do you do the golf tee mod, if you don't want to unplug the actuator behind the tail light?
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02-25-2009, 12:45 PM | #217 |
aka Mike
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It's been about 15k miles that way for me and everything is perfect.
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03-02-2009, 07:57 PM | #218 |
Second Lieutenant
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I just did the mod. on idle cold start i revved it to 3.5 - 4 rpm and it shot back... didnt sound good it was sort of like... VROOOOOM BONG-BONG-PACK-PACK. does sound like its healthy for the car.. lol i think i will be plugging it back in after i see what the difference is.
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