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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Vibrant resonators (#1792)



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      01-04-2010, 09:07 PM   #23
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Quote:
Originally Posted by wsybert View Post
Thanks for sharing. I was considering the same resonators for my AA system. It has the same low end rasp from a start... mostly if you lug it (mine is a 6MT). I wasn't sure if they would fit... need to check my layout to see if there is room at the same location as yours.
I have drone too. Bugs the $hit out of me. I think I know what the issue is though. (I know the resonators won't help drone.)
The exhaust is contacting the cross plate right behind where your resonators are mounted. I am going to see if I can move the exhaust up... if not, I will space the plate down as needed.

Thanks again for the pics. Any chance of posting a sound clip?

Bill
I will try to get a video for you when I get a chance tomorrow...I have to say one thing that the rasp is totally gone from my car and the level of drone seemed to be muffled and gone......I think the location where I have those resonators installed helps with the droning because there is a big space there before where the exhaust pipes can vibrate and create like a echo effect and pulsate through into the cabin...with these resonators in that location, I think the sound and vibration is supressed and muffed out by the insulating fiberglass (or whatever they used to pack the resonators with)...I honestly didn't hear any drone coming home from the exhaust shop..
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      01-04-2010, 09:10 PM   #24
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nice!!
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      01-04-2010, 09:11 PM   #25
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Originally Posted by Craig@SupremePower View Post
nice!!
Craig...you should really think about these...It really makes it sound awesome afterwards...I kid you not!
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      01-04-2010, 09:29 PM   #26
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Looks good!
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      01-04-2010, 10:16 PM   #27
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Quote:
I will try to get a video for you when I get a chance tomorrow...I have to say one thing that the rasp is totally gone from my car and the level of drone seemed to be muffled and gone......I think the location where I have those resonators installed helps with the droning because there is a big space there before where the exhaust pipes can vibrate and create like a echo effect and pulsate through into the cabin...with these resonators in that location, I think the sound and vibration is supressed and muffed out by the insulating fiberglass (or whatever they used to pack the resonators with)...I honestly didn't hear any drone coming home from the exhaust shop.
Thanks. I'll most likely buy them anyways, as I am doing DP's later this month, and I think the exhaust now is just a tad too loud.
Bill
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      01-04-2010, 11:31 PM   #28
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Quote:
Originally Posted by wsybert View Post
Thanks. I'll most likely buy them anyways, as I am doing DP's later this month, and I think the exhaust now is just a tad too loud.
Bill
Yeah get them since they are really cheap...I looked around and it was the cheapest shipped...95 bucks...can't go wrong!
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      01-05-2010, 11:59 AM   #29
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Started the car today at it was really cold outside, and to my surprise the cold start up was not even loud at all....I tried to video it, but my camera had the wrong memory card in there and didn't have enough memory to video the startup.....It sounded like before I even changed out to catless Dps...It was so tame that my wife was actually pretty happy with the sound compared to before...WOW....Took the car on the highway today and it sounds perfect....Nice meaty throaty sound with no drone!!! I am in awe with the sound now!! Car runs nice with it being catless and now the sound compliments the power....no more raspy HONDA CIVIC noises coming out occasionally anymore!!!

I will try to get a video tomorrow on the next cold startup...
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      01-05-2010, 12:06 PM   #30
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Quote:
Originally Posted by cn555ic View Post
my wife was actually pretty happy with the sound
Win!
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      01-05-2010, 12:13 PM   #31
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Quote:
Originally Posted by cn555ic
my wife was actually pretty happy with the sound
The last time my wife drove mine, she commented on how "loud" it was. Didn't like it. ......hmmmm maybe a good thing
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      01-05-2010, 12:19 PM   #32
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Quote:
Originally Posted by wsybert View Post
The last time my wife drove mine, she commented on how "loud" it was. Didn't like it. ......hmmmm maybe a good thing
My future S/O will have to love LOUD....cause I have a whole lot of it. The Vette has dual 3" straight pipes coming off the GT30Rs....
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      01-05-2010, 12:29 PM   #33
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Quote:
Originally Posted by wsybert View Post
The last time my wife drove mine, she commented on how "loud" it was. Didn't like it. ......hmmmm maybe a good thing
Sorry I couldn't get you the video this morning....tried but the wrong memory card was in there and not enough memory to take video....I will take it tomorrow for you again, but I am telling you that it wasn't even screaming loud now at all compared to before...Its pretty sick how a resonator can tune the sound of an exhaust....I didn't think it would work until after firing her up after the install, but I still feel that the location that my resonators are installed has alot to do with it to even quiet down the drone to almost nothing...
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      01-05-2010, 12:59 PM   #34
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i'll wait to hear yours....
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Craig...you should really think about these...It really makes it sound awesome afterwards...I kid you not!
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      01-05-2010, 01:22 PM   #35
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Quote:
Originally Posted by Craig@SupremePower View Post
i'll wait to hear yours....
You should know that I am anal with my car as I know you are with yours, I would not recommend anything unless it passes my approval....Its really night and day....but if you have to wait to hear mine, it might be awhile before I even see you...but speaking to Kevin he said yours rasp as hell and this will eliminate it, but thats just my suggestion because you might like the sound of your exhaust.....Classy modded cars like BMW should never show any signs of RASP IMHO
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      01-05-2010, 01:25 PM   #36
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Yeah i'm not big on rasp i'll have to hear my car from the outside and the back of it i never noticed it being raspy but to me its not all that loud either after my srt-10.... i'l definately look into it!!
Quote:
Originally Posted by cn555ic View Post
You should know that I am anal with my car as I know you are with yours, I would not recommend anything unless it passes my approval....Its really night and day....but if you have to wait to hear mine, it might be awhile before I even see you...but speaking to Kevin he said yours rasp as hell and this will eliminate it, but thats just my suggestion because you might like the sound of your exhaust.....Classy modded cars like BMW should never show any signs of RASP IMHO
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      01-05-2010, 06:32 PM   #37
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Does the resonators take time for it to break in? After a long drive home from work today I noticed the exhaust note a little weird for a second or two about 10 minutes into driving the car sounded like it was clogged a little and started to fart a little, and then it cleared out and then it sounded normal again.....Got home and saw some cotton ball material along side the inner tips of the exhaust....Looked into the exhaust pipe and saw like a film of this cotton like (fiberglass) material...Scraped it off and it looks like the stuff that you take out of a dryer filter that removes lint!!! Is this normal break in for installing resonators? The sound of the exhaust is still the same and nothing has changed, its still nice and throaty like yesterday and no rasp...Just wondering what the hell is laundry lint doing in my exhaust tailpipes????!!!!!!!!!!!!!!!!!!!!


Last edited by cn555ic; 01-05-2010 at 07:26 PM.
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      01-05-2010, 08:09 PM   #38
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Quote:
Originally Posted by Craig@SupremePower View Post
after my srt-10....
Was not aware they made an SRT10 Dodge Caravan?
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      01-05-2010, 08:23 PM   #39
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Quote:
Originally Posted by cn555ic View Post
Does the resonators take time for it to break in? After a long drive home from work today I noticed the exhaust note a little weird for a second or two about 10 minutes into driving the car sounded like it was clogged a little and started to fart a little, and then it cleared out and then it sounded normal again.....Got home and saw some cotton ball material along side the inner tips of the exhaust....Looked into the exhaust pipe and saw like a film of this cotton like (fiberglass) material...Scraped it off and it looks like the stuff that you take out of a dryer filter that removes lint!!! Is this normal break in for installing resonators? The sound of the exhaust is still the same and nothing has changed, its still nice and throaty like yesterday and no rasp...Just wondering what the hell is laundry lint doing in my exhaust tailpipes????!!!!!!!!!!!!!!!!!!!!

Need some answers...on the question above!

Last edited by cn555ic; 01-05-2010 at 08:39 PM.
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      01-05-2010, 11:25 PM   #40
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bump for an answer
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      01-06-2010, 01:59 AM   #41
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Quote:
Originally Posted by ar design View Post
Was not aware they made an SRT10 Dodge Caravan?
only an srt8
http://images.myride.com/images/no-t...ravan%20RT.jpg
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      01-06-2010, 01:41 PM   #42
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Drive to work and did a couple of WOT. Everything seems to be working properly. Exhaust has no signs of this resin anymore. Keep you guys posted
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      01-06-2010, 01:44 PM   #43
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Relax girl i'll get you a proper grocery getter and you'll be the coolest soccer mom/dad on the block!!!
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Was not aware they made an SRT10 Dodge Caravan?
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      01-06-2010, 01:46 PM   #44
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hmmm weird i've never seen actual material from a resonator or muffler burn out..
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Drive to work and did a couple of WOT. Everything seems to be working properly. Exhaust has no signs of this resin anymore. Keep you guys posted
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