Off topic but dang dude fix your license plate

 

Yes in the Fujitsubo's case, it is how the inside of the resonators are constructed that makes the exhaust as quiet as it is now. If you cut those resonators out and put standard straight flow through perforated resonators the exhaust will be much louder. There are many types of resonators; perforated, louvered, baffled, etc..... The less restrictive they are the less they muffle and vise versa.

We drive a inline 4 with somewhat equal length header. I did my testing on the Mitsubishi Lancer Evolution IX. What car/motor did you do your testing on?

Please explain to me your definition of the word quiet? Any type of muffler/resonator you put on an exhaust will quiet it down in general. But how much quieter is the key here. I and as well as many others are wanting that exact OEM stock quietness. Putting 2 or 3 resonators inline will not make a full 3" straight flow through exhaust system OEM quiet! We (the ones looking for quiet) dont just care about drones. We care about quiet. Yes a couple resonators might eliminate drone but it wont achieve quietness. And still quietness has to be defined here.

So what you are telling us is a complete 3" exhaust system catless with two 3" resonators and a straight flow through 3" muffler is going to make the car exactly OEM quiet? Remember the main argument here is quietness to OEM levels and not just reducing droning at certain rpm range only.

I believe that we have two different opinions on what quiet is. Your opinion is that if the exhaust doesnt shake the neighborhood then its quiet. My opinion is that if its louder than OEM then its loud.

 

So you are telling me that if you replace those resonators with the exact same diameter of straight pipe that it won't be much louder? Wrong.

Just recently within the past 4 years, Honda Civic, Buick Grand National, Mustang, Neon, Evo IX, Honda Prelude, Subaru WRX & STI, and then some. I'd love for you to listen to my full 3" Works Exhale Turboback exhaust. Resonated Test pipe, resonated intermediate pipe. Unbelievably quiet for a 3" exhaust.




OEM quiet is considered quiet? Then what are you doing on an aftermarket exhaust thread? Virtually all aftermarket Evo exhausts are louder than oem. I never once said a 3" exhaust is oem quiet. Now you are putting words in my mouth to justify your side. If quietness to you is OEM sounding, then it looks like you will be leaving your car stock. Good luck on that.


Thats what I'm telling you? Again, I never said that. You seem to think that a resonator doesn't do much. It does. Again, when did I say OEM quiet? That's just dumb. Tell me you're not seriously looking for a performance exhaust that is OEM quiet???

Anyways, lets not shy away from the original argument here. I'm really not sure what to tell you, being that I wrote a huge paragraph putting this in laymans terms for you. I can see I am wasting my time here. Internet arguments always end up like this anyways. Everyone thinks they are right even if they have been proven wrong. It's a lose lose, and frankly I am tired. Anyhow, lets do this again, take those resonators out of the RM01a and put straight pipes in there, then come back here and tell me the results. You won't come back because you won't like the results. Hopefully you will finally understand. I've come to the understanding that you just aren't listening.

 

Well, I finally got the nerve to Wikipedia since my laymans terms obviously weren't good enough. Here you go buddy. Important info highlighted in red for you. You're welcome, oh and I win.


"Resonator" usually refers to the Exhaust system. A resonator is a piece of tubing that is slightly larger in diameter than the rest of the exhaust pipe. It is usually located after the catalytic converter, and before the muffler. Vehicles can have multiple resonators. They also usually have some sort of sound deadening material inside. The name resonator would lead one(BluEVOIX) to believe it makes the exhaust louder, but it is actually there to reduce drone and make a quieter exhaust tone.

At least I won't have to come back here anymore to argue my point. I am unsubscribing now. My job here is done.

 

Like I keep telling you it makes a difference but how much is what we are arguing!


Obviously you have not seen all my exhaust project threads. And yes my car has a complete 3" turboback exhaust no cat and OEM like quiet.


So tell me what is quiet to you? What decibel or comparison of something so that I can understand is quiet for you? For some people the train blowing its horn is a quiet whistle.

And yes I am seriously looking for OEM quiet and my current setup does it without any resonators!

Your not reading completely of what I am writing. I said replace the Fujitsubo resonators with ANOTHER RESONATOR that is straight flow through perforated. I did not say replace it with a straight pipe. Read my post again please.

 

I have the same exhaust with a Works HFC in lieu of a test pipe. It's kinda quiet at idle, if you discount its low frequencies. I mean, parked in my driveway, it shakes half the dishes in the kitchen cabinets. At WOT, only the dead would miss its presence.

 

I am not saying a resonator makes the car louder. I am saying it doesnt quiet it down as much as a muffler does. And in our case of how quiet we are trying to achieve I am telling you resonators will NOT help achieve that.


You are in Illinois. If your ever around Northside Chicago land / suburbs area I will let you see my car and exhaust on how quiet it is. And then you tell me if you ever achieved that on a inline 4 motor with full 3" catless system with however many resonators you want to add on to it.

If you think I am crazy for wanting an aftermarket exhaust thats OEM like quiet, then your perspective of loud is very lenient.

And I'll stress again. I am not saying resonators make a car louder. I am not saying resonators dont do anything. What I am saying is resonators, dont muffle/quiet a car as much as a muffler.

And to be even more clear I am referring to this type of resonator on the left only. Which are basically smaller diameter glass pack mufflers.


And if you would have bothered reading the link I posted it said it right there :

http://auto.howstuffworks.com/muffler5.htm

 

Does anyone have an idea of what this exhaust weighs? If it weighs a good amount less than the stock exhaust and is still quiet then I'm sold regardless of tapering, amount of resonators, etc. The electric cut-out will take care of hp gains when I need it.

 

Here is a video clip I took on my iphone 3gs of my car idling. Full Turbo 3" back exhaust and MAP 3" inlet o2 housing. That's just to let you know that even my o2 housing is 3" and not 2.5 inch as most aftermarket stock turbo frames are.

http://www.neiu.edu/~asaakian/Exhaus...%20exhaust.avi

I got disrupted hence why it was cut short. I tried talking to help compare the loudness to my voice. So this would sort of give an idea of how quiet or loud it really is in comparison to something else in the video.

Now please tell me have you had a 2 or 3 resonator setup this quiet? And although I dont have a video clip yet, its pretty much the same when giving it some throttle/rpms (except WOT). Oh and I do not have any resonators on my car. And most important anything 1 decibel louder than this, I consider loud.