4th Generation Maxima (1995-1999) Visit the 4th Generation forum to ask specific questions or find out more about the 4th Generation Maxima.

Planning a dual exhaust.

Old 02-25-2008 | 10:24 AM
  #41  
MOHFpro90's Avatar
Thread Starter
Senior Member
iTrader: (11)
 
Joined: Aug 2006
Posts: 4,717
From: Sunshine State
Originally Posted by Fr33way™
I don't want to make any waves but you MIGHT not want to bolt your headers to the top of your coil packs....
I will keep that in mind

For you people, I am doing 2 pipes, 2 mufflers, on one side. I need to know, is there enough room to fit side by side 2.5" piping in the highlighted area?

Old 02-25-2008 | 10:39 AM
  #42  
chillin014's Avatar
Senior Member
iTrader: (67)
 
Joined: Dec 2004
Posts: 8,612
From: houston tx
i really highly doubt it. why dont you just go measure?
Old 02-25-2008 | 11:31 AM
  #43  
MOHFpro90's Avatar
Thread Starter
Senior Member
iTrader: (11)
 
Joined: Aug 2006
Posts: 4,717
From: Sunshine State
I tried I couldn't get an accurate measurement due to the shape of the channel, it would help with a lift and the exhaust off...just wondering if anyone else has tried.
Old 02-25-2008 | 11:43 AM
  #44  
chillin014's Avatar
Senior Member
iTrader: (67)
 
Joined: Dec 2004
Posts: 8,612
From: houston tx
i'll have my exhaust off in the near future, within the next few weeks maybe sooner and I can get a measurement. but that first bend pretty much is for ONE PIPE. The only way I see that working is if you had one sitting slightly lower or something and you better have those pipes welded together or they'll be rattling like crazy.
Old 02-25-2008 | 02:30 PM
  #45  
MOHFpro90's Avatar
Thread Starter
Senior Member
iTrader: (11)
 
Joined: Aug 2006
Posts: 4,717
From: Sunshine State
Definitely will be welded, pretty much all the way back. Let me know man, thanks!
Old 02-25-2008 | 06:28 PM
  #46  
JeremiahMaximaSE's Avatar
Member
 
Joined: Sep 2000
Posts: 248
Check out the link below....talk to Roland at Corsi Automotive...he has maxima dual exhaust kits already made up!! Tell him Jeremiah sent you and he'll take care of you! Hope this helps bro!
-Jeremiah
1995 Nissan Maxima SE

http://www.corsiautomotive.com/

Old 02-26-2008 | 05:32 PM
  #47  
MOHFpro90's Avatar
Thread Starter
Senior Member
iTrader: (11)
 
Joined: Aug 2006
Posts: 4,717
From: Sunshine State
Alright, while checking out Burns products, I came across 304 Steel piping and 16G aluminum piping. Can I do aluminum? Will it handle the heat, gases and wear? Aluminum was 0.58 lbs/ft vs the 1.59 lbs/ft of the steel, and the steel was MORE expensive by $6 / ft. Suggestions?
Old 02-26-2008 | 07:45 PM
  #48  
justlookin12's Avatar
Junior Member
 
Joined: Aug 2007
Posts: 18
I say get a nice exhaust that looks like a stock muffler like a maybe a full cattman.
Old 02-26-2008 | 07:54 PM
  #49  
chillin014's Avatar
Senior Member
iTrader: (67)
 
Joined: Dec 2004
Posts: 8,612
From: houston tx
move along noob....move along.

mohf- where do you plan on having the pipes bent?
Old 02-26-2008 | 07:58 PM
  #50  
justlookin12's Avatar
Junior Member
 
Joined: Aug 2007
Posts: 18
im just givin my opinion
Old 02-26-2008 | 08:10 PM
  #51  
MaximaSpd85's Avatar
Senior Member
iTrader: (14)
 
Joined: Jan 2005
Posts: 2,637
From: Kissimmee, FL
judging by post #41 im assuming you want to keep both tailpipes on the same side of the rear? you dont like the dual tailpipe look?
Old 02-26-2008 | 09:39 PM
  #52  
Fr33way™'s Avatar
Wild for Width
iTrader: (23)
 
Joined: Jan 2005
Posts: 6,520
From: Atlanta
Are you boosting? I wouldn't worry about fitting two 2.5" pipes next to each other. Those could/should be 2" at max.
Old 02-26-2008 | 10:19 PM
  #53  
MOHFpro90's Avatar
Thread Starter
Senior Member
iTrader: (11)
 
Joined: Aug 2006
Posts: 4,717
From: Sunshine State
Justlookin, this setup is going to cost less than catman headers, Y, and catback...or right at it.

Chillin, I have no idea yet. It will be somewhere in Orlando, Ill be moving there in the fall semester.

MaximaSpd85, Single side, yes, I dont want to have to cut my bumper, and I want the 'stock' look, and Im not a big fan of the duals on a max.

Freeway, I will be later this year, yes.


Anyone wanna fill me in if aluminum will work for piping?
Old 02-27-2008 | 12:27 AM
  #54  
Fr33way™'s Avatar
Wild for Width
iTrader: (23)
 
Joined: Jan 2005
Posts: 6,520
From: Atlanta
I want to say that welding aluminum is different but someone can chime in.

I know my y-pipe is "aluminized" steel from Warpspeed and that has been fine for 3 years.

Last edited by Fr33way™; 02-27-2008 at 12:31 AM.
Old 02-27-2008 | 09:12 AM
  #55  
MOHFpro90's Avatar
Thread Starter
Senior Member
iTrader: (11)
 
Joined: Aug 2006
Posts: 4,717
From: Sunshine State
Yeah, I am pretty sure welding it is different, thanks, Ill take this to all motor.
Old 02-27-2008 | 09:18 AM
  #56  
chillin014's Avatar
Senior Member
iTrader: (67)
 
Joined: Dec 2004
Posts: 8,612
From: houston tx
I've heard welding aluminum is pretty tricky as well, no personal experience though.
Ill look for the thread in all motor..I'm interested in this. 2 inch piping per bank sounds reasonable. Since 3 inches was beneficial to 6. That's half an inch per cylinder with my ricer math.
Old 02-27-2008 | 09:20 AM
  #57  
MOHFpro90's Avatar
Thread Starter
Senior Member
iTrader: (11)
 
Joined: Aug 2006
Posts: 4,717
From: Sunshine State
hahaha, math math, not my favorite subject, hate it actually, but I always seem to pass with ease.

Anyhow, I am still debating on 2 or 2.5", I think 2.5 will be better when boosted, and the costs wont be too much more, Ill have to see.
Old 02-27-2008 | 09:32 AM
  #58  
skuccio's max's Avatar
Beast Mode!!!
iTrader: (1)
 
Joined: Mar 2002
Posts: 530
From: In a '99 SE-L, w/no sunroof
I just wish someone came out with an equal length Y. I'm mulling over my exhaust setup as well, debating going custom or suffering with the Pontiac Grand Prix exhaust note...
Old 02-27-2008 | 01:37 PM
  #59  
KRRZ350's Avatar
Supporting Maxima.org Member
iTrader: (29)
 
Joined: Oct 2005
Posts: 4,572
From: Middleboro/Carver, Ma
Originally Posted by Fr33way™
Are you boosting? I wouldn't worry about fitting two 2.5" pipes next to each other. Those could/should be 2" at max.
Old 02-27-2008 | 01:58 PM
  #60  
MOHFpro90's Avatar
Thread Starter
Senior Member
iTrader: (11)
 
Joined: Aug 2006
Posts: 4,717
From: Sunshine State
Originally Posted by MOHFpro90
Freeway, I will be later this year, yes.




Alright, aluminum is out of the question, wont hold up to the gases.

What would I do about O2s? Would I only use 1 rear as normal and put it in one of the pipes?
Old 02-27-2008 | 02:19 PM
  #61  
bigpulve+'s Avatar
Supporting Maxima.org Member
iTrader: (11)
 
Joined: Apr 2006
Posts: 11,660
From: Vermont
Originally Posted by MOHFpro90



Alright, aluminum is out of the question, wont hold up to the gases.

What would I do about O2s? Would I only use 1 rear as normal and put it in one of the pipes?
It really isnt going to matter if you just have one rear o2. The rear one doesnt really do much other than monitor emissions. But If I was going to do this I would just do dual 2" pipes. I mean if all the boosted guys are only running 3" piping than 4" of total piping will be plenty...

I just want to get this straight. You are getting custom headers-piping to x pipe and than both into a single muffler?
Old 02-27-2008 | 02:24 PM
  #62  
MOHFpro90's Avatar
Thread Starter
Senior Member
iTrader: (11)
 
Joined: Aug 2006
Posts: 4,717
From: Sunshine State
Nah, 2 separate mufflers, 6" round, 21" long. Side by side in the stock location.
Old 02-27-2008 | 03:06 PM
  #63  
NmexMAX's Avatar
dot dot dot ...
iTrader: (22)
 
Joined: Dec 2000
Posts: 34,588
From: Santa Fe, NM
Is it me, or does this just seem like more trouble than what it's worth?

IBdependsonwhatitsworthistoyou
Old 02-27-2008 | 04:43 PM
  #64  
slow97maxima's Avatar
member
iTrader: (5)
 
Joined: Nov 2007
Posts: 294
From: Salem, NH
Originally Posted by Fr33way™


I don't want to make any waves but you MIGHT not want to bolt your headers to the top of your coil packs....
hahah good call
Old 02-27-2008 | 05:03 PM
  #65  
MOHFpro90's Avatar
Thread Starter
Senior Member
iTrader: (11)
 
Joined: Aug 2006
Posts: 4,717
From: Sunshine State
Originally Posted by NmexMAX
Is it me, or does this just seem like more trouble than what it's worth?

IBdependsonwhatitsworthistoyou
Not sure yet, haha.

I made some changes to the plan, now going steel. Would like iconel or titanium but to expensive.

304 Stainless
2 9" cats
1 X pipe
2 Roundbody mufflers
Old 02-27-2008 | 05:04 PM
  #66  
chillin014's Avatar
Senior Member
iTrader: (67)
 
Joined: Dec 2004
Posts: 8,612
From: houston tx
Originally Posted by NmexMAX
Is it me, or does this just seem like more trouble than what it's worth?

IBdependsonwhatitsworthistoyou
the larger exhaust? or the dual aspect of it.
Old 02-28-2008 | 06:28 AM
  #67  
NmexMAX's Avatar
dot dot dot ...
iTrader: (22)
 
Joined: Dec 2000
Posts: 34,588
From: Santa Fe, NM
Originally Posted by chillin014
the larger exhaust? or the dual aspect of it.
Dual.
Old 02-28-2008 | 05:02 PM
  #68  
MOHFpro90's Avatar
Thread Starter
Senior Member
iTrader: (11)
 
Joined: Aug 2006
Posts: 4,717
From: Sunshine State
So matt blehm helped me out some and made the suggestion that I use a Y pipe on either end of a 3" resonator to make my X pipe. Does this sound like a good idea? Heres the idea:

Old 02-28-2008 | 07:32 PM
  #69  
skuccio's max's Avatar
Beast Mode!!!
iTrader: (1)
 
Joined: Mar 2002
Posts: 530
From: In a '99 SE-L, w/no sunroof
I think that will work. That is basically what the G35/350z has



That might actually be the way to go, easy to make too

Looks like to get that 350 sound you just need a short even run to the merge. I think the way to get that sound is all in the y-pipe

But I like your idea, keep us posted
Old 02-28-2008 | 07:41 PM
  #70  
MOHFpro90's Avatar
Thread Starter
Senior Member
iTrader: (11)
 
Joined: Aug 2006
Posts: 4,717
From: Sunshine State
I am thinking about making the two pipes equal length before the Y/res/Y, better sound, maybe performance, etc...and peace of mind that I did it to the best of my ability.

Oh, and I found a mandrel bender in Orlando, Performance Muffler Man on East Colonial Drive. Time to work some friendly magic and convince them to let me under the lift...
Old 02-29-2008 | 05:55 AM
  #71  
chillin014's Avatar
Senior Member
iTrader: (67)
 
Joined: Dec 2004
Posts: 8,612
From: houston tx
waiiiiiiiiiiiiiiiiit a second. so the 350z exhaust isnt actually DUAL. that was the argument though, that the 350z came stock with larger exhaust diameter per bank than we are doing aftermarket. That isnt dual at all...it merges into one and has some phony dual tip muffler.

I like matt's idea there MOHF. I dont know how an xpipe works exactly so i'm not sure if thats the same when you separate it with the resonator like that. but its all about how it fits under the car really.

also, what headers are you using that have a 2.5 outlet? or are you cutting some up to achieve that?
Old 02-29-2008 | 11:10 AM
  #72  
MOHFpro90's Avatar
Thread Starter
Senior Member
iTrader: (11)
 
Joined: Aug 2006
Posts: 4,717
From: Sunshine State
It all depends on what the in/out of the resonator are on the 350Z/G. Look at it this way, the cross sectional area for 2.5" and 3" are the following:

2 ( pi * 2.5^2) = 39.25 for dual 2.5" piping
(pi * 3^2) = 26.26 for single 3" piping
(pi * 3.5^1) = 38.46 for single 3.5" piping.

Since I will have 39 sq in with the dual 2.5" piping, I should probably go with a 3.5" Y/Resonator/Y, correct? Trying to keep the same velocity in exhaust gases.

I will probably be modifying a set of OBX headers, which would include getting the 2.5" outlet.

The way this sets up it would still be considered true dual, as basically I am taking an X pipe, cutting it in half and sticking a resonator in there.
Old 03-01-2008 | 07:48 AM
  #73  
SNOMAX's Avatar
PM me for LCA's!
iTrader: (14)
 
Joined: Mar 2003
Posts: 309
From: Akron, OH
Here is my take on dual exhaust for the maxima:

Some disadvantages of a dual exhaust are: Weight, cost, noise--afterall, you are putting on an aftermarket muffler, it will most likely drone.

Now, my suggestion to get the best of both worlds is to do an exhaust cut out. Right behind the Y-pipe, put in a cut out, that pipes back to the stock location.

This way you can have one exhaust track for WOT that makes great power, sounds mean and you can pipe it all the way to the back of the car.

When you want to cruise around town you can use the "stock" exhaust track. Put on a muffler that won't drone and you have the best of all worlds.

You will also cut down on the weight, because you are not adding 2 resonators, 2 mufflers, etc. It also saves some cost.

my 2c.
Old 03-01-2008 | 08:08 AM
  #74  
HM_Motorsports's Avatar
Member
iTrader: (1)
 
Joined: Apr 2006
Posts: 227
From: Columbus, OH
3"


Yes, it's loud. lol. Hence the bandclamp. I have an old lexus GS400 muffler I put a 3" adaptor on that I can switch out in about 10 minutes for long trips and such.
Old 03-01-2008 | 11:19 AM
  #75  
chillin014's Avatar
Senior Member
iTrader: (67)
 
Joined: Dec 2004
Posts: 8,612
From: houston tx
do you have a resonator in the exhaust as well^^?? or just a muffler
Old 03-01-2008 | 07:28 PM
  #76  
HM_Motorsports's Avatar
Member
iTrader: (1)
 
Joined: Apr 2006
Posts: 227
From: Columbus, OH
Not a resonator so to speak, that is a 12" Dynomax race muffler at the tail section, there's an 18" version in the tunnel section and a 3" converter as well.
Old 03-01-2008 | 07:50 PM
  #77  
chillin014's Avatar
Senior Member
iTrader: (67)
 
Joined: Dec 2004
Posts: 8,612
From: houston tx
Ah, just trying to figure out why everyone acts like 3" is louder. I'd still be running the regular resonator and muffler on mine.
Originally Posted by HM_Motorsports
Not a resonator so to speak, that is a 12" Dynomax race muffler at the tail section, there's an 18" version in the tunnel section and a 3" converter as well.
Old 03-01-2008 | 09:13 PM
  #78  
DrunkieTheBear's Avatar
Turbo'd Saab
iTrader: (17)
 
Joined: Feb 2007
Posts: 35,839
From: Albany, NY
I'm doing the 3" exhaust for my catback.

but here is a pic of how the M5 mufflers work...



Personally I love the sound of the M5s stock exhaust
Old 03-01-2008 | 09:41 PM
  #79  
HM_Motorsports's Avatar
Member
iTrader: (1)
 
Joined: Apr 2006
Posts: 227
From: Columbus, OH
It's not that it's 3" that makes it loud,,,its just that those mufflers are barely anything, I tried alot of mufflers to try to get it as quiet as possible, without restriction. This is by far the loudest, however, they're true straight thru, so I deal with the noise and just slap on the quieter muffler for road trips and such.
Old 03-01-2008 | 11:55 PM
  #80  
chillin014's Avatar
Senior Member
iTrader: (67)
 
Joined: Dec 2004
Posts: 8,612
From: houston tx
Originally Posted by HM_Motorsports
It's not that it's 3" that makes it loud,,,its just that those mufflers are barely anything, I tried alot of mufflers to try to get it as quiet as possible, without restriction. This is by far the loudest, however, they're true straight thru, so I deal with the noise and just slap on the quieter muffler for road trips and such.
gotcha. in that case i'll just put the resonator and muffler on there like I planned. I'm not worried about the restriction of either of those. I'm not going to do the dual tips, unless they are both on the same side of the car like MOHF is saying.

Thread Tools
Search this Thread
Quick Reply: Planning a dual exhaust.



All times are GMT -7. The time now is 04:51 PM.