Notices
2003-2009 Nissan 350Z

NISMO Exhaust - How to reduce loudness

Thread Tools
 
Search this Thread
 
Old Jun 12, 2004 | 06:19 PM
  #21  
ChuckGZ's Avatar
ChuckGZ
Registered User
 
Joined: Nov 2003
Posts: 717
Likes: 0
From: TN
Default

hey, dinofx, if you're still looking to sell that nismo exhaust, i might have a buyer for you. what's your asking price?
Reply
Old Jun 14, 2004 | 12:08 PM
  #22  
dinofx35's Avatar
dinofx35
Thread Starter
Registered User
 
Joined: May 2004
Posts: 14
Likes: 0
From: NC
Default

I paid $900 for the exhaust, $50 for shipping, and $50 for the G35 extension. I'm asking $850 for just the exhaust if the buyer is local and I can deliver in person.
Reply
Old Jun 14, 2004 | 05:24 PM
  #23  
Speedracer's Avatar
Speedracer
Registered User
 
Joined: Mar 2004
Posts: 1,144
Likes: 1
From: West Springfield, MA
Default Re: NISMO Exhaust - How to reduce loudness

lose the cats....you'll be all set
Reply
Old Jun 14, 2004 | 06:12 PM
  #24  
ChuckGZ's Avatar
ChuckGZ
Registered User
 
Joined: Nov 2003
Posts: 717
Likes: 0
From: TN
Default

cool. i'll let him know. where in nc are you?
Reply
Old Jun 15, 2004 | 10:51 AM
  #25  
dinofx35's Avatar
dinofx35
Thread Starter
Registered User
 
Joined: May 2004
Posts: 14
Likes: 0
From: NC
Default Re: Re: NISMO Exhaust - How to reduce loudness

Originally posted by Speedracer
lose the cats....you'll be all set
No thanks. I prefer keeping them for performance.
Reply
Old Jun 15, 2004 | 11:02 AM
  #26  
sausage5000's Avatar
sausage5000
Registered User
 
Joined: Mar 2004
Posts: 172
Likes: 0
From: south florida
Default

the most sound comes from changing or removing the cats. but if you want to keep the cats, and you want the exhaust quieter, change it back to stock. since you will be recovering noticable torque that was lost to the aftermarket system, you can chalk the whole thing up as a bigtime performance mod.

Last edited by sausage5000; Jun 15, 2004 at 11:05 AM.
Reply
Old Jun 15, 2004 | 08:21 PM
  #27  
dinofx35's Avatar
dinofx35
Thread Starter
Registered User
 
Joined: May 2004
Posts: 14
Likes: 0
From: NC
Default

Originally posted by ChuckGZ
cool. i'll let him know. where in nc are you?
I'm in Raleigh-Durham area. I'm looking for no less than $830, + shipping if any, + $50 for the G35 extension if purchaser wants it.

BTW everyone, the exhaust was removed from the car as soon as I test drove it. The HF CATs are barely noticeable with the stock exhaust. My opinion is that at half the price, you get the same performance improvements with high-flow cats. But, no one will be able to tell that you've modded your car. Some people want to do cat-backs, some people want the loudest car on the street (headers, cats, exhaust). I'm not saying what's right.

If I can't get a solid offer for the exhaust, I'll think about getting it butchered to tone it down some. So my goal was to find out if this would work, since there's no going back once you break out the hacksaw.
Reply
Old Jun 16, 2004 | 05:13 AM
  #28  
gmitro's Avatar
gmitro
Registered User
 
Joined: Jan 2004
Posts: 32
Likes: 0
From: Concord, N.C.
Default

Based on dyno results, the NISMO catback exhaust was one of few (or maybe the only one) that did not lose low end torque! I agree it is not enough to be noticeable if you remove it, but it is definitely NOT hampering you performance.

Greg
Reply
Old Jun 16, 2004 | 05:46 AM
  #29  
mfrank257's Avatar
mfrank257
Registered User
 
Joined: Jun 2004
Posts: 9
Likes: 0
From: Montreal, Canada
Default

In my case, I just bought the Borla Cat back and I am very disappointed, it is almost like the stock one. Do you think if I replace my cat it would do a big difference. I want a loud sound.
Do you know good aftermarket cats?
Reply
Old Jun 16, 2004 | 06:00 AM
  #30  
dinofx35's Avatar
dinofx35
Thread Starter
Registered User
 
Joined: May 2004
Posts: 14
Likes: 0
From: NC
Default

Originally posted by mfrank257
In my case, I just bought the Borla Cat back and I am very disappointed, it is almost like the stock one. Do you think if I replace my cat it would do a big difference. I want a loud sound.
Do you know good aftermarket cats?
I've never heard any other car that sounds like the 350Z/G35/FX35. They have a very recognizable exhaust sound, I'm suprised Borla could reproduce it.

The CATs will definitely make it louder. People say that the RT cats are louder, and that they have collapsed on some cars. I highly recommend the Crawford CATs, but I had to modify one of them to fit my FX35. The stock cats are cylindrical, but Crawfords are sort of rectangularly shaped. The LEFT cat's heat shield would touch the car under moderate acceleration due to the engine torqueing. I even tried a torque strap. So I ended up removing the heat shield. This may not happen for you, but it's no big deal if it does.

Installing the CATs are MUCH easier than I could have imagined. It is no more difficult that installing the catback exhaust. All you need is a 14mm socket, a socket elbow (universal joint), and then about 30 inches of extensions so you can reach the bolts from above the engine. Removing the intake tube helps, but is not necessary. It does take two people though.
Reply
Old Jun 16, 2004 | 11:51 AM
  #31  
kernel's Avatar
kernel
Registered User
 
Joined: May 2003
Posts: 336
Likes: 0
From: Chicago
Default

have you thought about the KINETIX RACING Highflow cats. they have In-Line Resonators to reduce the sound a little bit but still keep the performance up

http://www.kinetixracing.com/index.a...ATS&Category=2


i have heard that the crawford cats with a borla are really loud, but most of the people that have the kinetix cats with it don't seem to have any problems and it's just a little louder. but not extreamly loud.
Reply
Old Jun 16, 2004 | 12:27 PM
  #32  
dinofx35's Avatar
dinofx35
Thread Starter
Registered User
 
Joined: May 2004
Posts: 14
Likes: 0
From: NC
Default

Originally posted by kernel
have you thought about the KINETIX RACING Highflow cats. they have In-Line Resonators to reduce the sound a little bit but still keep the performance up

http://www.kinetixracing.com/index.a...ATS&Category=2


i have heard that the crawford cats with a borla are really loud, but most of the people that have the kinetix cats with it don't seem to have any problems and it's just a little louder. but not extreamly loud.
I don't see any resonators in the picture, although sometimes the wrong picture is used. Has anyone tried kinetix for CATs? How are they? I noticed that A) there are no heat shields B) they are cylindrical, like the factory CATs.
Reply
Old Jun 16, 2004 | 06:01 PM
  #33  
Rizzness's Avatar
Rizzness
Registered User
iTrader: (2)
 
Joined: Nov 2002
Posts: 244
Likes: 0
From: Boston, MA
Default

I have the Kinetix cats and I LOVE THEM!!
At idle, the car has a little bit of a burble. Driving, you can hear them a little, maybe 10% louder than stock, not much at all, but definitely different.
Then at WOT, they just LET LOOSE, the burble goes to a "BRRAAAPPP"-- fairly loud- not fartcan, not horrendously loud, but very noticible. I love it-- its the stock exhaust on steroids!
Oh, yeah- I have the cats running thru the stock exhaust--- I am very pleased!!!
ZZ
Reply
Old Jun 17, 2004 | 08:12 AM
  #34  
mfrank257's Avatar
mfrank257
Registered User
 
Joined: Jun 2004
Posts: 9
Likes: 0
From: Montreal, Canada
Default

In the Kinetix web, there are 3 type of cats. Rizzness: which one do you have? Any problem with your check engine? A want a deep sound, as loud as possible, I don't care about HPs.
Reply
Old Jun 17, 2004 | 08:24 AM
  #35  
Rizzness's Avatar
Rizzness
Registered User
iTrader: (2)
 
Joined: Nov 2002
Posts: 244
Likes: 0
From: Boston, MA
Default

Hmm.. I dont' know exactly which type of cat I have-- the one with a group deal in March/April along with their plenum- just a HF cat, I thought.
I don't know if I can say the sound is "as deep and as loud as possible"----
I think it is definitely louder and burbles more-- Which I personally like a lot!!
ZZ
Reply
Old Jun 19, 2004 | 01:44 PM
  #36  
Jason@Performance's Avatar
Jason@Performance
Sponsor
Performance Nissan
iTrader: (11)
 
Joined: Oct 2003
Posts: 8,783
Likes: 3
From: So-Cal - Ready to go?
Default

dont install the Y-PIpe... that will muffle some of the sound...

or you can have an extra resonator welded into the mid pipe...
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
sales@czp
Engine
33
Sep 23, 2019 03:30 PM
Gruppe-S
Body Interior
13
May 16, 2016 10:42 PM
ars88
Zs & Gs For Sale
18
Apr 4, 2016 07:52 AM
nanotech
Exhaust
6
Oct 2, 2015 05:02 AM




All times are GMT -8. The time now is 06:20 AM.