Quiet muffler - BEGGING for help

[BarnDog296]

I just swapped my cat for a 3" one to match up with my 3" system I currently have in and my car got LOUDER! I have an NA KA right now, but will be turbo in about 6 months to a year, so right now i need a muffler to quiet my sound.

People have told me about the Supertrapp, but I really dont want it, i am SURE SOMEONE makes a good muffler that is quiet for my car.

I know that tanabe is putting out an under 93db system but its a FULL system and its $600 i really JUST want the muffler and usually a good one is under $200I dont need to replace my whole system, just the muffler.

I could really use some professional help, this has been driving me crazy for too long now

[NISTECH]

If you have a muffler now just add a resonator. if you dont then add both. any muffler shop. But be aware the quiter muffler the more restriction in the exhaust= the higher the drop in HP.

[lbrowne]

If you have a muffler now just add a resonator. if you dont then add both. any muffler shop. But be aware the quiter muffler the more restriction in the exhaust= the higher the drop in HP.

What he said... get yourself like a 20+ inch resonator (isn't it a 24-26 inch that can fit under there?), it should really mellow out the tone. Unfortunately with a straight through muffler, if you have one, its going to have more volume than a standard high flow..

EDIT: I'm getting my stock res removed and putting on a Dynomax Super Turbo muffler....but I have the stock piping which is going to be alot quieter than a 3"

[jdm_master_X]

Apex'i 70mm butterfly valve for the exhaust. u can quiet the car down on command. that works great.

[steaminhotryce]

Just a suggestion: the UR underdrive crank pulley significantly lowered the sound of my exhaust on my N/A KA. But you said you were going turbo (SR?)...so I don't know if it's worth it for you unless you're going KA-T.

[5upra]

If you are looking to keep quiet then exhaust should be left as stock as possible

[steaminhotryce]

If you are looking to keep quiet then exhaust should be left as stock as possible

I disagree. Some people (like myself) are just trying to find a balance in between performance and comfort. There's nothing wrong with that.

[BarnDog296]

I disagree. Some people (like myself) are just trying to find a balance in between performance and comfort. There's nothing wrong with that.

^^^ agreed. What i am doing isnt weird, I want the performance, but i dont want that horrible sound.Now, here is the thing everyone is saying resonators, but what about mufflers? thats how this thread started. I currently have a Flowmaster with dual out. I really like the sound and the tone, but its too LOUD, its NUTS does anyone have a suggestion on a quiet muffler that doesnt sound ricey?
Modified by BarnDog296 at 6:32 AM 9/6/2006

[BarnDog296]

BTW I had a guy at Magnaflow tell me that the longer a muffler is, the quieter it will be

Has anyone else heard that?

[rogoman]

Now, here is the thing everyone is saying resonators, but what about mufflers? thats how this thread started. I currently have a Magnaflow with dual out. I really like the sound and the tone, but its too LOUD, its NUTS does anyone have a suggestion on a quiet muffler that doesnt sound ricey?

Since you want to stay with a 3" exhaust system, you'll want to get the longest possible muffler that can fit in the car. Flowmaster makes a nice 19" long muffler that's fairly quiet; also install a resonator to quiet it down further.

[5upra]

I disagree. Some people (like myself) are just trying to find a balance in between performance and comfort. There's nothing wrong with that.

I am not bashing you guys in anyway...I have no reason too. But a quiet exhaust is a restrictive exhaust. There isn't a balance between exhaust. Since the best exhaust will only get you maybe 5-6 hp out of the "stocker" its either go big or go home on exhaust. I my self am a performance guy so comfort to me is performance.

[lbrowne]

BTW I had a guy at Magnaflow tell me that the longer a muffler is, the quieter it will be

Has anyone else heard that?

Dude, the answer has been mentioned many times. It this thread and in the one you posted in the other forum.

The magnaflow muffler you have is great, get the long resonator and install it!!! This is what you need so that the car doesn't sound like a donkey with its nuts in a vice at high rpms. (and you'll still keep your current exhaust flow)

[babowc]

resonator..all an exhaust does is get the exhaust air to the back of the car.

[BarnDog296]

Dude, the answer has been mentioned many times. It this thread and in the one you posted in the other forum.

The magnaflow muffler you have is great, get the long resonator and install it!!! This is what you need so that the car doesn't sound like a donkey with its nuts in a vice at high rpms. (and you'll still keep your current exhaust flow)

My point is that this is a cop out answer. I dont want a resonator (although I will probably put one in now) but what I really want is an answer to is my original question. I dont care that I can put on a resonator (thats not what i asked but that is EVERYONES answer) what im asking is for a BRAND of MUFFLER that is quieter than the Flowmaster I have right now. I like the sound my flowmaster makes, its a good sound, but its too damn loud.

Everyone wants to write "put a resonator on it" and thats not what im asking. Does anyone make a MUFFLER that is quieter than my flowmaster?

The only person who has said a muffler type is rogoman everyone else says"add a resonator" and thats not what im looking for
Modified by BarnDog296 at 6:47 AM 9/6/2006

[babowc]

oh my god.then go stick the stock muffler back on.

jesus. stop being a ***** and just deal with it.ATL cops dont pull you over that often for stupid exhaust sound.

[BarnDog296]

your right, ATL cops dont care about it, thats not the point. Your saying that I just have to deal with it? a muffler is made to muffle sound, thats the point of it. I just want one that does that. This is a car i take to business meetings (I do sales) and is my daily car, i dont want people to be able to hear it a mile away when I pull up. There isnt anything wrong with that at all. This isnt about cops, this is about the fact that i want to be able to talk to the person sitting next to me, I have the ENTIRE car sound deadened already and its horrible in the cabin.

No one knows a good muffler that youve heard at shows or anything?

Really guys this isnt a bad thing to ask for, and if you dont have anything constructive or helpful there isnt a reason to post. I just need some help to find a good muffler that maybe someone has heard or seen around, thats all

[lord_hypnos]

Sorry for the threadjack but resonators allow more air through than mufflers correct? Resonators cancel out sound by bouncing around some of the exhaust note and canceling out other sounds? I think?

[artemous]

Won't a resonator also give the engine the "spokes in a wheel" kind of vibratory sound?

I've kinda been thinking of flowmaster 40 series. 19" long with single or dual outlets.

As for the original post, Earplugs are cheaper than a new muffler. The turbo will make it quiet. Cheap alternative for 6 months.

You guys with the resonator debate vs longer muffler crack me up.

[lbrowne]

oh my god.then go stick the stock muffler back on.

jesus. stop being a ***** and just deal with it.ATL cops dont pull you over that often for stupid exhaust sound.

Go with an oem, very restrictive, muffler. If you want quiet, and you don't want a resonator, then you have to get restriction. All the answers are based on what you were looking to achieve, and we gave you the answer that allowed you to keep the performance you currently have.

[BarnDog296]

Man, I posted this up a long time ago and got just about the same answers, people telling me to just deal with it. In reality you NEVER have to just DEAL with anything in life you can always fix it the way you want it to really work. Hell, the 350Z has 2 resonators and muffler per exhaust. Look, I did some more searching and look how amazing this this. 3 different systems all guarantee that it is a quiet system.

This first one comes to us from this VERY same website and Forum:zerothread?id=188026The ONLY problem with this though is that they only ordered 200 of them from Japan and they are all sold out now

This is one i found after doing some searching for a few hours:http://stores.channeladvisor.c.../S156?

AND not to add insult to injury. This one comes to us all the way from the Tanabe homepage:http://www.tanabe-usa.com/Swearing up and down that its a guaranteed under 93Db

Also Garrett systems are also noise compliant as well. For a ridiculous amount of money

Now, lets continue this. Most of these are full systems (which yes, do include a resonator) but I am also POSITIVE that anyone is capable of building a system that does the same thing, and yes possibly including a resonator.

Now can you guys do me a favor and STOP saying its not possible, its a ridiculous argument and its pointless on a thread that I am really looking for real information

In short, its counter-productive and irritating, so just help me out if you can we are not all young guys that can deliver pizzas in a loud car or park in front of the grocery store. Some of us work in a professional work environment and it looks bad when you pull up to a client with a loud exhaust. There is a reason that even though a 350Z puts out about 300HP and is a sports car people still dont see it as a nuisance like one with an overlound muffler.

This is a possible thing to do, i just need to know if any of you have heard any of these and they are quiet or not. Hell, I will buy one for a truck silent exhaust if I have to, the KA24DE is also a truck engine, for christ sake.

[BarnDog296]

oh and artemous I looked into what you said and it seems that that is not always the case you have to actually into the resonator. There are baffles in there. The cheaper ones some people actually put like a wire mesh in there and it has alot of raised sections. This vibrates the sound and creates the sound you are talking about. Good resonators actually are dimpled metal inside that dont have raised edges, these are the ones that dont create that sound.So, when you go to but one, if you dont want that ricey sound, then make sure the inside is dimpled in and not made of the mesh that raises up into the middle.Its easy to look in there and check you will know what i mean as soon as you look into one.

[BarnDog296]

Also one last thing if anyone else comes looking for this topic b/c they want the same thing. Here is a pretty helpful site I found as well to give you an idea of how to do it yourself. I know its for pontiacs, but I wanted more the theories behind the principal and not just an exact how-to

http://www.pontiacstreetperfor....html

[C-Kwik]

From my experience, Flowmasters are quite loud. One of the magazines did a test of different mufflers and actually found that most straight through designs were actually quieter, especially relative their high flowrates.

You might consider putting the OE cat back in until you actually turbocharge the car.

Also consider, that a muffler alone may not be the only solution. The quieter systems out there are well thought out and perhaps several variations are tested to achieve lower noise levels. Also different kinds use different internals. I know that Ultra Flo mufflers tend to be quiet at first. Over time, the packing starts to deteriorate and blow out causing it to become louder to an extent. Some worse than others. I've had teh best experiences with Greddy systems ans the packing seems to be much harder to blow out. Instead of wrapping the packing around a stainless steel mesh, Greddy fills the muffler with cube shaped packing around the mesh. Seems to work well. Ran several systems on 240s and never had an increase in noise over time.

Every flowmaster I've heard on imports have been exceptionally loud. Hell, I never thought a stock Paseo could sound that loud until I heard one with a Flowmaster on it. Perhaps start with a better muffler. Maybe add a resonator/glasspack/second muffler as needed.

[babowc]

again, if the s13 is your daily, like most of us, and you need to get around to your clients to make sales, just keep the stock exhaust on.

unless you want to spend unnecessary amount of money trying to get a quieter exhaust with only minute better flow, that is.

you can go ahead and drop in a resonator or two along the piping of an aftermarket exhaust and like C-kwik said, a better "packed" muffler may help for a bit until it starts to deteriorate the packing.

there is a member on here or ka-t.org that has a dual outlet exhaust system.. i forget what its called.. CS or something? go look it up on Ebay, it'll show.

i think that exhaust system is a bit quiter, but its the average name-brand exhaust price, 500.

good luck with whatever you end up going with.

[artemous]

What about adapting the muffler from the Spec V or Maxima with the little valve in there. It shouldn't be hard to make one fit if you know your way around a torch. Bigger engine should have a bit bigger muffler.

Since my flowmaster theory is out.