As the title says, anyone run dual mufflers on their max? Or anyone have any photos of a 3rd with duals? I'm thinking of making a dual exhaust while my car is being fixed. Something like this;



Where the pipe makes a Y just before the mufflers. Will most likely have to cut out the spare wheel and re-weld a flat sheet of metal but that won't be a problem.

While we are talking about exhausts, what make/model of mufflers are the best for our cars? As in a good sound, I don't want to be like a civic ricer when I drive around town.

Thanks for any help.

 

I had duals years and years ago. The previous owner (flyry on here) had them installed. They were kind of cheesy and sounded kind of gross IMO and I ditched them after a few months (actually I sold them to somebody on here IIRC). You don't have to cut out the spare tire well. He was able to fit the crossover pipe in between the spare tire well and the rear subframe, but it was crushbent and pretty kinked in a few spots.

My old black VE when I first got it (2002ish)



And here's the entire exhaust removed

 

I just did some research and there's always the option of having one muffler with 1-in 2-out and have a pipe going out at both ends of the back. That would probably cost less in the end, and be easier to make depending where I fit the muffler.

And would you have other angles of the car with the duals? I would really appreciate.

 

ha! I forgot flyry had that on the car. Do you remember if the pipe cleared the jack point on the rear crossmember? If it ran directly UNDER it or did it run tucked up between the rear member and the sway bar?

stealing matt's picture for reference:


I picked up a Dynomax muffler meant for a 3rd gen-4th gen camaro/firebird which has the single inlet and dual outlets and i plan to mount it in the stock location and run the one pipe out and around the tire well. Of course after i test fit it and hook it up temporarily if it sounds loud or raspy i will go for a different muffler, so im keeping my options open (right along with the original poster here)

 

It ran pretty much tucked between the rear member and the sway bar. You can see in the first pic it's behind the sway bar, but just a little lower than the sway.

I do remember that little shield in between the gas tank and the rear member was all mangled up. As if they had to bend it up test fitting stuff or getting it to not scrape against the crossover pipe.

 

[quote=Phatmatt;7762777]As the title says, anyone run dual mufflers on their max? Or anyone have any photos of a 3rd with duals? I'm thinking of making a dual exhaust while my car is being fixed. Something like this;





I don't have much personal experience with setting up a dual exhaust for a 3rdgen but I would encourage the attempt to fab up the dual exhaust. I wouldn't go cheap with the parts for this either, like already stated, you don't want it to sound like a ricer Honda set up. This pic looks like a dope set up but do you know if it's any good performance/sound wise?

 

That photo is only an example of one of the ideas of what I could do. I have my diploma in welding/fitting so making an exhaust is not a problem.

 

the problem is the rear parallel (lateral links) and the lack of space...let's not forget the gas tank.

the POS pencil mufflers will work since they are (IMO) chromed up resonators.

if you want an actual "can" muffler then you'll need to split the pipe after it passes the lateral links.

keep in mind doing that your exhaust flow won't be equal and you're really doing it on pure looks and not actual performance.

 

http://forums.maxima.org/3rd-generat...ler-my-ve.html

 

I like the single outlet better

 

Excellent, then you should be able 2 fab up something that fits/looks real tight, be waitin' 2 see finished product.

 

I can't find any images of my old dual exhaust. The muffler shop was able to just run it between the gas tank and the spare tire well (real tight....I told them NOT to bend/damage any of the sheilding). I did it solely for looks. Of course, I did away with it after about 2 years....that long only because I couldn't afford to replace it any sooner.

As James has already said, given the way it has to be set up....it won't sound that great given there is no space for a true muffler or large enough resonator to make the exhaust sound right for the V6 maxima. I very quickly realized that 75% of my exhuast was coming out the passenger side. So, the idea quickly became absurd.

 

anybody ever try to fab up a true dual exhaust. like. from the header back?. how hard would sumthin like that be?

 

Kinda like BMW! The tubing would have to be siamesed all the way back and staggered glasspacks would act as the resonators and some small aeroturbine mufflers would seem to work....."Got a headache just thinking about it!"

 

so it wouldnt be easy? haha. got it. would it help performance wise?

 

just bolt on another muffler on the other side and dont connect it, and just stick some dry ice in the can so it looks like its actually hooked up

o wait, thats the Honda forums. ZZZIiinng

 

yea wrong forums dudz.

I want working duals not a mock up second muffler. Imagine in winter? One muffler has moisture coming out and the other nothing. gay much? lol

I'm actually thinking of having just one muffler down the line with 1-in 2-out and have one pipe at each end with tips.

 

nope...not one bit...and from the size of piping and obstacles in the way i'm not sure it would even fit.

 

There's enough room to run two siamesed 2", with X-pipe and mufflers and twin tips, just like a BMW .....

 

Sorta like this.....without the rear Lateral muffler:
http://www.andysautosport.com/bmw/20...f00184747.html

 

Basically you want functioning true duals dump the gas tank put in a fuel cell and run true duals best you can. Anything bigger the 2" will lose power and torque. Without running boost.

 

As far as routing the pipes around the spare tire well, if you have ABS with the load sensing valves on the rear suspension crossmember it will be more of a challenge. I have an old piece of flex exhaust pipe i used to mock up a pipe routing on my car (i have ABS) and it does get pretty tight in some spots. Im worried that the pipe may bang into brake lines, braces, underbody etc back there. Look at the pic i posted earlier with the craftsman jack - see how theres nothing on that rear member piece? MUCH easier to run a pipe through there

 

That's whats up, real duals on a 3rdgen Max, I'd like 2 see that. If the split dual set up is done right though, it can flow/look right.

 

Running true duals on the 3rd gen is more than possible. Siamese style like has been stated would obviously be the way to go. Two 2" pipes all the way back, although I'm not sure if it'd need an X or H pipe crossover. There's a lot of debate on V6 Mustangs and Camaros whether or not X or H pipes are beneficial for true duals

My brother and I are in the process of building the exhaust for our LS1 RX7. It's true duals, 3" siamesed through the back in the stock routing (except for routing under/around the custom driveshaft), and we've been able to do it just fine. The 3rd gen would be even easier especially using just 2" pipe.

Of course, that's still relatively alot of work for what might not be much payoff. But who knows as it's never been done. But I would think on a V6 not making a ton of power (like a VG), that true duals might actually noticeably hurt low/mid range power. But just a guess..

 

i still havent found it but there was a guy from Australia with a burgundy 3rd gen that had dual functioning exhausts and he said they sound awesome, he joined around 6-8 months ago and posted everything. i believe they were 2"

 

I remember when flyry had that made



(and when James took it off )

 

the greddy SP sounds the best!!!!

 

See to be equal and balance in sound is making sure you run the right bank to the right muffler. Since you will be dividing up your two banks you have to figure out which manifold goes to which muffler.

 

That's what I had on my old Maxima, I loved it. Perfect fitment and it sounded fantastic.

 

Doesn't having dual mufflers kill our torque? Aware me!

 

You only kill your torque when you put bigger piping and dump catalytic convert if you put the right size piping and keep catalytic converts in the system in turn you shouldn't lose torque.

 

Interesting... thanks.

 

That's interesting because my catalytic converter was removed due to being rusted but never replaced. I did feel some difference but didn't know it would kill my torque like that. I will get myself one and put it on when I do the work.

 

removin the cat shifts the torque curve higher in the rpm range

 

I thought removing cat = removing back pressure which would hinder torque? Yet it boosts HP.

 

Dumping catalytic converter is worthless besides polluting the air more. If having flow restriction is so important to you all just upgrade the size of inlet and outlet so you don't have it bottle necked at the catalytic converter use the same size as what piping you plan on using.

 

Mine is now a 2.25" catalytic converter and i didn't lose torque nor power from how it felt before and after.

 

hinders torque down low yes it does, but changes the volumetric efficency of your motor. the loss of back pressure will inhibit low end torque but will increase high end torque which help in producing hp.