Notices
2003-2009 Nissan 350Z

So the Z doesn't come with true dual exhaust....

Old 03-12-2006, 11:01 PM
  #21  
jakesford
Registered User
 
jakesford's Avatar
 
Join Date: Oct 2005
Location: TX
Posts: 735
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by sean1967
ok, you show the two cats, what i was saying in my very first post is that you would need to buy to high flow cats as opposed to just one, price consideration is all i was getting at.
but the way the 350z is setup you buy two cats no matter what exhaust you use. Thats if you chose to go with aftermarket cats, instead of the factory pieces or test pipes.
jakesford is offline  
Old 03-12-2006, 11:22 PM
  #22  
EdgeOfSanity
Registered User
iTrader: (1)
 
EdgeOfSanity's Avatar
 
Join Date: Jul 2004
Location: Breckenridge, Co
Posts: 1,102
Likes: 0
Received 1 Like on 1 Post
Default

the s2k and neon cant be TD becuase they are Inline 4 engines.
EdgeOfSanity is offline  
The following users liked this post:
NaaNee00 (03-12-2019)
Old 03-13-2006, 05:02 AM
  #23  
PoWeRtRiP
Registered User
 
Join Date: May 2003
Location: jacksonville, FL
Posts: 2,916
Likes: 0
Received 0 Likes on 0 Posts
Default

actually the z has 4 cats. the cat section on each side is split into 2 separate cats. there is one before the bend and one after the bend on each side.
PoWeRtRiP is offline  
Old 03-13-2006, 06:09 AM
  #24  
Category5
Registered User
 
Join Date: Oct 2005
Location: South Miami, FL
Posts: 211
Likes: 0
Received 0 Likes on 0 Posts
Default

The Z32 had a "true" dual exhaust. Two separate pipes/cats from front to back.
Category5 is offline  
Old 03-13-2006, 06:30 AM
  #25  
undercat
Registered User
 
undercat's Avatar
 
Join Date: Mar 2003
Location: Charlotte, NC
Posts: 64
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by EdgeOfSanity
the s2k and neon cant be TD becuase they are Inline 4 engines.
I'm glad someone pointed this out. As I was reading through the posts I didin't think anyone had noticed the original question.
undercat is offline  
Old 03-13-2006, 08:00 AM
  #26  
MustGoFastR
Registered User
iTrader: (13)
 
MustGoFastR's Avatar
 
Join Date: Oct 2002
Location: San Diego
Posts: 4,798
Likes: 0
Received 1 Like on 1 Post
Default

Which is why it's rediculous to see a Civic with a body kit and dual exhaust...

The poster confused about the cats is a retard. Do you even own a Z, dude? Exhausts are called cat-BACK for a reason; the cats stay on the car and you replace everything in BACK of them for aftermarket exhaust. The VQ engine is a V6, therefore, two banks of three cylinders, which exhaust on each side of the engine into a manifold, then cats (primary and secondary) for a total of four cats; two on each side. In the stock exhaust, these feed into the Y-pipe, then combine into the single mid-pipe. For a dual exhaust, each side runs straight back from each cat to separate mufflers and may or may not incorporate a crossover. You DO NOT replace or add cats when adding an exhaust or when going from the stock style to a true dual. I don't know any simpler terms to put it in, man.
MustGoFastR is offline  
Old 03-13-2006, 10:40 AM
  #27  
davidv
Registered User
iTrader: (2)
 
Join Date: Jun 2004
Location: Tucson, AZ
Posts: 42,793
Likes: 0
Received 8 Likes on 8 Posts
Default

Originally Posted by uncutZ00
would putting in true dual exhaust make a big difference in terms of performance?
Check the exhaust forum and learn about single and dual exhausts, and y-pipes.
davidv is offline  
The following users liked this post:
NaaNee00 (03-13-2019)
Old 03-13-2006, 11:12 AM
  #28  
Sean
Registered User
 
Sean's Avatar
 
Join Date: Jan 2006
Location: nj
Posts: 8,843
Likes: 0
Received 2 Likes on 2 Posts
Default

Originally Posted by MustGoFastR
You DO NOT replace or add cats when adding an exhaust or when going from the stock style to a true dual. I don't know any simpler terms to put it in, man.
a small list of folk who HAVE replaced the stock cats when upgrading
ZU L8OR
booger
Z Eliminator
ep3
IP Gthreefive
sdkingka
SteveG
Bubble
steve
blktrack
koolzero
NOBI
DJK
wren57
ZinMiami
davidv
gdwisni
scarface9
excid182

that was just a sample, Nismo carrys high flow cats from the dealer, just in case you need some help upgrading now
Sean is offline  
Old 03-13-2006, 11:22 AM
  #29  
ActionJackson
Registered User
iTrader: (1)
 
ActionJackson's Avatar
 
Join Date: Apr 2005
Location: California
Posts: 981
Likes: 0
Received 0 Likes on 0 Posts
Default

You don't have to replace your cats... they did it for performance gains only -_-
ActionJackson is offline  
Old 03-13-2006, 11:22 AM
  #30  
Lambo
Registered User
 
Lambo's Avatar
 
Join Date: Sep 2005
Location: Near Charlotte, NC
Posts: 99
Likes: 0
Received 0 Likes on 0 Posts
Default

2 Cats?


Lambo is offline  
Old 03-13-2006, 11:27 AM
  #31  
Sean
Registered User
 
Sean's Avatar
 
Join Date: Jan 2006
Location: nj
Posts: 8,843
Likes: 0
Received 2 Likes on 2 Posts
Default

Originally Posted by ActionJackson
You don't have to replace your cats... they did it for performance gains only -_-
you don't "have to" replace anything, but if you want the best gain you do...some go test pipes, and why replace your exhaust if not for gain? i know it's alot more to spend, but to say you "DO NOT" replace them is just silly.
Sean is offline  
The following users liked this post:
NaaNee00 (03-13-2019)
Old 03-15-2006, 12:03 AM
  #32  
thecolorblue
Registered User
 
thecolorblue's Avatar
 
Join Date: Feb 2006
Location: King of Prussia, PA
Posts: 40
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Armitage
To answer your first question, neither the S2k nor the SRT-4 I believe are true duals. The Mustang GT is (has been) as well as the Corvette.
I know for sure that the S2K doesnt have true duals since I was under one changing a catback on it last week.
thecolorblue is offline  
Old 03-16-2006, 02:31 PM
  #33  
Speedracer
Registered User
 
Speedracer's Avatar
 
Join Date: Mar 2004
Location: West Springfield, MA
Posts: 1,144
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Gsedan35
Real world numbers from the 350Z sports magazine dyno shoot out awhile back. Look at torque and where the power is delivered and over what range.
Note that the top 3 are TD setup's, though if we want to split hair's the Stillen does use a X crossover and the Borla a H crossover. Also, the Injen tested is not the current straight tip, don't really see where that would effect numbers anyhow.

Borla (car 2) = 8.2 Hp - 2.7 ft/lbs torque (peak values)
HP increase from 5500 rpm to 6500 rpm range. Lost HP & torque below
1800 rpm. 60mm pipe. Weighs 52lbs.

Stillen (car 1) = 8.1 Hp - 7.3 ft/lbs torque (peak values)
Hp and torque increase starting around 3000 rpm to redline. Lost a
little Hp & torque below 1800 rpm. 60mm pipe. 74lbs - 10 lbs heavier
than the stock system.

Injen (car 1) = 7.6 Hp - 5.1 ft/lbs torque (peak values)
Small torque loss at 2800 rpm. Torque gain starts at 3300 rpm. Small
Hp increase starts at 3300 rpm, maxing out from 5800 rpm to redline.
Major loss in Hp and torque below 2200 rpm. 49lbs.

Nismo (car 1) = 6.3 Hp - 4.5 ft/lbs torque (peak values)
Developed torque and Hp over wide rpm range. Torque increase starting
at 3000 rpm. Most HP increase from 4800 rpm to redline. No power
losses below 1800 rpm. 54lbs.

5Zigen (car 2) = (-3.4) Hp - .02 ft/lbs torque (peak values) Lost Hp,
no real torque gain. Most expensive. Loudest. 58mm pipe. Lightest
@ 25lbs.

Okay....let's look at the Stillen and the Nismo as examples here. There is a 1.9hp difference between the two, and that was with the exhausts on two different cars. Have you any idea of the normal variation in dyno results between even the SAME CAR on two dyno runs, let alone two completely different vehicles?
Speedracer is offline  
Old 03-12-2019, 08:40 AM
  #34  
NaaNee00
Registered User
 
NaaNee00's Avatar
 
Join Date: Feb 2019
Location: Michigan
Posts: 157
Received 15 Likes on 13 Posts
Default

Originally Posted by xNeo View Post
If you don't have cats, how do you pass inspection? Sorry if this is a stupid newbe question.
I don't know if this has already been answered but: Not every state has the same laws. Liberal states such as California will have very strict laws about emissions, where you need inspections every month. Other states such as Michigan, home to the automotive industry, don't have such laws. Here in Michigan, there's no emission tests at all...and hopefully it'll stay that way.

If you live in an area like California where they do have inspection tests, you could just swap out parts to make your car pass, then put everything back on it again, granted this would be a hassle to deal with.

P.S. anyone can still get pulled over for noise pollution if your car is too loud and the cops pull you over (take off cats for test pipes = hella loud, could be problematic)
NaaNee00 is offline  
Old 03-13-2019, 03:39 AM
  #35  
travlee
Master
iTrader: (8)
 
travlee's Avatar
 
Join Date: Jul 2011
Location: Texas
Posts: 37,773
Received 5,939 Likes on 4,093 Posts
Default

Originally Posted by NaaNee00 View Post
I don't know if this has already been answered but: Not every state has the same laws. Liberal states such as California will have very strict laws about emissions, where you need inspections every month. Other states such as Michigan, home to the automotive industry, don't have such laws. Here in Michigan, there's no emission tests at all...and hopefully it'll stay that way.

If you live in an area like California where they do have inspection tests, you could just swap out parts to make your car pass, then put everything back on it again, granted this would be a hassle to deal with.

P.S. anyone can still get pulled over for noise pollution if your car is too loud and the cops pull you over (take off cats for test pipes = hella loud, could be problematic)
you responded to a 13 year old dead thread sir. if you think test pipes on a 350z is loud, you would have hated my z06 with long tube headers, high flow cats (barely considered cats) and straight through exhaust with no real muffler
travlee is offline  
Old 03-13-2019, 06:02 AM
  #36  
NaaNee00
Registered User
 
NaaNee00's Avatar
 
Join Date: Feb 2019
Location: Michigan
Posts: 157
Received 15 Likes on 13 Posts
Default

Originally Posted by travlee View Post
you responded to a 13 year old dead thread sir. if you think test pipes on a 350z is loud, you would have hated my z06 with long tube headers, high flow cats (barely considered cats) and straight through exhaust with no real muffler
HAHAHAHAHA thats fking hilarious, I'm such a dumbass . Yea IMO I think just test pipes will be loud, but I've only heard this from youtube videos (probably doesn't do justice). Each person has their own opinion on what's "loud", for example my friend thinks my STOCK 350z is "extremely loud"...
NaaNee00 is offline  
Old 03-13-2019, 06:12 AM
  #37  
travlee
Master
iTrader: (8)
 
travlee's Avatar
 
Join Date: Jul 2011
Location: Texas
Posts: 37,773
Received 5,939 Likes on 4,093 Posts
Default

Originally Posted by NaaNee00 View Post
HAHAHAHAHA thats fking hilarious, I'm such a dumbass . Yea IMO I think just test pipes will be loud, but I've only heard this from youtube videos (probably doesn't do justice). Each person has their own opinion on what's "loud", for example my friend thinks my STOCK 350z is "extremely loud"...
here is my old car with with art pipes and tdx2 , aka test pipes and pretty much straight through exhaust


and then here is pretty much the same thing, just twice the displacement (i like how it shakes the camera at the end)

and after i swapped axle back

Last edited by travlee; 03-13-2019 at 06:14 AM.
travlee is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
hulkout
370Z Brakes & Suspension
7
04-28-2017 09:00 PM
Uriyo_
Exterior & Interior
21
11-06-2015 05:59 AM


Thread Tools
Search this Thread
Quick Reply: So the Z doesn't come with true dual exhaust....


Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: