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DropTop was right about the resonators! DropTop was right about the resonators!
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  #1  
Old 03-12-2005, 08:40 PM
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DropTop was right about the resonators!
Earlier today I had the guy that did the exhaust on my Lambo remove the resonator. Drop was right. Its pretty loud. It has a real throaty sound and definitely much louder. Its definitely turning heads when you crank it over. Where I live in Miami there are quite alot of exotics and some of my fellow Lambo owners as well as a few Ferrari and Porsche drivers were pretty impressed by my 4.8. Even my partner who has a Cayenne is calling the guy that did my exhaust. Thanks for the tip Drop.
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Old 03-12-2005, 09:10 PM
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Has DropTop checked in here?

If possible can you record the sound of your exhaust without resonators and post the audio file. I want to compare and decide for my 4.8is.
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Old 03-12-2005, 10:15 PM
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I can film tomorrow. How do I post the video? I have no idea how to. Droptop had a clip on Bimmerfest. Thats how I heard his.
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Old 03-12-2005, 10:18 PM
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Love the handicapped sign in the background!
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Old 03-13-2005, 11:35 AM
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Quote:
Originally Posted by rgnbull1227
I can film tomorrow. How do I post the video? I have no idea how to. Droptop had a clip on Bimmerfest. Thats how I heard his.
rgnbull, do you notice any 'loss' of performance with the resonators removed? I assume you just replaced the resonator section with a straight through pipe of the same diameter (as the rest of the exhaust)?

Also, any unpleasant vibrations or resonance?
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Old 03-13-2005, 11:41 AM
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No loss in power. We did exactly that. Removed the resonator and replaced with 2 straight pipes back to the mufflers. It was done yesterday and when I first heard it I was like "oh-Boy", it has a little rattle to the sound. I left my mechanics and said that I will live with it for a few days and if its too much I would put back the resonators and try something else. But I am not sure why but after driving it for the 20 minute trip back home it smoothed out nicely. I must say it sounds unbelievable right now but I did notice that when its started cold, it does have a slight ratlle for the first 5 mins if I stomp it a bit. Your thought on the loss of power, is that because of less back pressure that you mention that?
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Old 03-13-2005, 11:46 AM
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Yes, I was just wondering if the resonators contributed to back pressure that helped the combustion process.

Do you have a link to DropTop's video, I would really like to hear for myself what it sounds like. I'm sure that given the number of 4.8is that I've driven, I could notice any improvement quite easily.
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Old 03-13-2005, 11:48 AM
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I sent you a PM on BF.
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Old 03-13-2005, 11:48 AM
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Thanks rgnbull, I just got your PM on bimmerfest. I've sent you my email address.
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Old 03-13-2005, 12:06 PM
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its on its way!!! Let me know what you think.
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