Nissan 370Z Forum  

+ 370z Muffler Delete +

Past weekend i was bored so i decided to remove my muffler box and see how the exhaust note would change. I had a bad feeling about it but it

Go Back   Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain > Intake/Exhaust


Like Tree7Likes

Reply
 
LinkBack Thread Tools Display Modes
Old 06-02-2009, 11:49 AM   #1 (permalink)
A True Z Fanatic
 
batman_4's Avatar
 
Join Date: Dec 2008
Location: McAllen Tx.
Posts: 1,038
Drives: '09 PW 370Z
Rep Power: 367
batman_4 has a reputation beyond reputebatman_4 has a reputation beyond reputebatman_4 has a reputation beyond reputebatman_4 has a reputation beyond reputebatman_4 has a reputation beyond reputebatman_4 has a reputation beyond reputebatman_4 has a reputation beyond reputebatman_4 has a reputation beyond reputebatman_4 has a reputation beyond reputebatman_4 has a reputation beyond reputebatman_4 has a reputation beyond repute
Default + 370z Muffler Delete +

Past weekend i was bored so i decided to remove my muffler box and see how the exhaust note would change. I had a bad feeling about it but it only took ~30 minutes....turned it on and was surprised . Anyways its a tad to loud for my style but love the deepness...now im going to get some nice tips + piping fabricated. For now this will be temporary as i do not have the funds to buy a full exhaust system...that will come later. Here is a quick vid i made

YouTube - 370z Muffler Delete No Music
__________________

'09 6spd. Touring: Eibach / SPC / Motordyne / Berk / Z1 / Oneighty / Mines / SSR / Stillen / CFE
batman_4 is offline   Reply With Quote
Old 06-02-2009, 11:52 AM   #2 (permalink)
A True Z Fanatic
 
wstar's Avatar
 
Join Date: Mar 2009
Location: Houston, TX
Posts: 4,024
Drives: too slow
Rep Power: 3594
wstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond reputewstar has a reputation beyond repute
Default

It sounds better than I would have expected lol. But I wouldn't expect any serious power bump from this. The mufflers aren't the problem with the exhaust flow, it's the cats and Y-pipe mostly.
__________________
7AT Track Car!
Journal thread / Car setup details
wstar is offline   Reply With Quote
Old 06-02-2009, 11:53 AM   #3 (permalink)
A True Z Fanatic
 
semtex's Avatar
 
Join Date: Jan 2009
Location: Behind enemy lines
Age: 53
Posts: 5,995
Drives: People to drink
Rep Power: 32
semtex has a reputation beyond reputesemtex has a reputation beyond reputesemtex has a reputation beyond reputesemtex has a reputation beyond reputesemtex has a reputation beyond reputesemtex has a reputation beyond reputesemtex has a reputation beyond reputesemtex has a reputation beyond reputesemtex has a reputation beyond reputesemtex has a reputation beyond reputesemtex has a reputation beyond repute
Default

Wow, I'm surprised at how quiet/tame that sounds. I think this hints at how restrictive the stock cats really are (vs. the muffler), because if you listen to a Z with HFCs and the stock cat-back (incl. the muffler), it's more aggressive sounding!
__________________
"There are no small accidents on this circuit." -- Ayrton Senna
316.8whp & 248 ft/lbs (Dyno Dynamics) | 319whp & 256 ft/lbs (DynoJet) (04/23/10)
Stillen G3 CAI, CBE, Pulley / F.I. LTH / GTSpec Ladder Brace / Setrab Oil Cooler / UpRev-tuned by Forged Perf.
semtex is offline   Reply With Quote
Old 06-02-2009, 12:01 PM   #4 (permalink)
A True Z Fanatic
 
CBRich's Avatar
 
Join Date: Apr 2009
Location: SC
Posts: 2,464
Drives: 370Z
Rep Power: 543
CBRich has a reputation beyond reputeCBRich has a reputation beyond reputeCBRich has a reputation beyond reputeCBRich has a reputation beyond reputeCBRich has a reputation beyond reputeCBRich has a reputation beyond reputeCBRich has a reputation beyond reputeCBRich has a reputation beyond reputeCBRich has a reputation beyond reputeCBRich has a reputation beyond reputeCBRich has a reputation beyond repute
Default

That's actually not bad at all.
CBRich is offline   Reply With Quote
Old 06-02-2009, 12:04 PM   #5 (permalink)
RCZ
A True Z Fanatic
 
RCZ's Avatar
 
Join Date: Nov 2008
Location: Miami
Posts: 6,403
Drives: '09 370Z
Rep Power: 1118
RCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond reputeRCZ has a reputation beyond repute
Send a message via AIM to RCZ
Default

nothing to write home about.
RCZ is offline   Reply With Quote
Old 06-02-2009, 12:05 PM   #6 (permalink)
A True Z Fanatic
 
FuszNissan's Avatar
 
Join Date: May 2009
Location: St. Louis
Posts: 14,275
Drives: Pure Sex
Rep Power: 541
FuszNissan has a reputation beyond reputeFuszNissan has a reputation beyond reputeFuszNissan has a reputation beyond reputeFuszNissan has a reputation beyond reputeFuszNissan has a reputation beyond reputeFuszNissan has a reputation beyond reputeFuszNissan has a reputation beyond reputeFuszNissan has a reputation beyond reputeFuszNissan has a reputation beyond reputeFuszNissan has a reputation beyond reputeFuszNissan has a reputation beyond repute
Send a message via AIM to FuszNissan Send a message via Skype™ to FuszNissan
Default

I'm pretty impressed, I was expecting something horrible coming from this. Sounds pretty good. When I changed the HFC is sounds louder with the stock muffler on...lol
__________________
Mods: Too Many to list!
LouFuszNissan

ZDAYZ 2012
FuszNissan is offline   Reply With Quote
Old 06-02-2009, 12:07 PM   #7 (permalink)
A True Z Fanatic
 
semtex's Avatar
 
Join Date: Jan 2009
Location: Behind enemy lines
Age: 53
Posts: 5,995
Drives: People to drink
Rep Power: 32
semtex has a reputation beyond reputesemtex has a reputation beyond reputesemtex has a reputation beyond reputesemtex has a reputation beyond reputesemtex has a reputation beyond reputesemtex has a reputation beyond reputesemtex has a reputation beyond reputesemtex has a reputation beyond reputesemtex has a reputation beyond reputesemtex has a reputation beyond reputesemtex has a reputation beyond repute
Default

I agree, it does sound good. I think this is really valuable information, actually, because it opens up a new avenue for modification. Specifically, what I'm thinking of is people who might want a deeper sound, but don't want to mess with their cats. Or maybe they live somewhere where it's absolutely forbidden to touch the cats. Well, now they have an option other than replacing the cats -- just delete the muffler. Now all we need is for someone to make a bolt-on kit so that you can just bolt some pipes/tips in place of where the muffler used to be.
__________________
"There are no small accidents on this circuit." -- Ayrton Senna
316.8whp & 248 ft/lbs (Dyno Dynamics) | 319whp & 256 ft/lbs (DynoJet) (04/23/10)
Stillen G3 CAI, CBE, Pulley / F.I. LTH / GTSpec Ladder Brace / Setrab Oil Cooler / UpRev-tuned by Forged Perf.
semtex is offline   Reply With Quote
Old 06-02-2009, 12:42 PM   #8 (permalink)
A True Z Fanatic
 
ChrisSlicks's Avatar
 
Join Date: Mar 2009
Location: North East
Posts: 6,203
Drives: 09 370Z Sport M6
Rep Power: 653
ChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond repute
Default

The muffler is what is supporting the rear end of the exhaust, so if you take the muffler off the exhaust is just flopping about. So any tips you make up will need to have a bracket attached.
ChrisSlicks is offline   Reply With Quote
Old 06-02-2009, 12:49 PM   #9 (permalink)
A True Z Fanatic
 
Join Date: Apr 2009
Location: Sacramento, CA
Posts: 2,188
Drives: 370z MB 6mt
Rep Power: 913
shabarivas has a reputation beyond reputeshabarivas has a reputation beyond reputeshabarivas has a reputation beyond reputeshabarivas has a reputation beyond reputeshabarivas has a reputation beyond reputeshabarivas has a reputation beyond reputeshabarivas has a reputation beyond reputeshabarivas has a reputation beyond reputeshabarivas has a reputation beyond reputeshabarivas has a reputation beyond reputeshabarivas has a reputation beyond repute
Default

That actually sounds sick - just dont melt your bumper like this guy
shabarivas is offline   Reply With Quote
Old 06-02-2009, 01:40 PM   #10 (permalink)
Enthusiast Member
 
Join Date: Apr 2009
Location: Jacksonville, Florida
Posts: 393
Drives: 09 370Z Silver/Persi
Rep Power: 283
Diversion has a reputation beyond reputeDiversion has a reputation beyond reputeDiversion has a reputation beyond reputeDiversion has a reputation beyond reputeDiversion has a reputation beyond reputeDiversion has a reputation beyond reputeDiversion has a reputation beyond reputeDiversion has a reputation beyond reputeDiversion has a reputation beyond reputeDiversion has a reputation beyond reputeDiversion has a reputation beyond repute
Send a message via AIM to Diversion
Default

Wow.. that sounds like a nice exhaust is already on the car.. I might do this for a week and see how I like it.. maybe it'll give me an idea of what it's like to own an exhaust? Thoughts?

Edit: Yikes, it looks like the pipes are pointing upwards into the car? Think that will burn something up?

Last edited by Diversion; 06-02-2009 at 01:43 PM.
Diversion is offline   Reply With Quote
Old 06-02-2009, 01:46 PM   #11 (permalink)
A True Z Fanatic
 
semtex's Avatar
 
Join Date: Jan 2009
Location: Behind enemy lines
Age: 53
Posts: 5,995
Drives: People to drink
Rep Power: 32
semtex has a reputation beyond reputesemtex has a reputation beyond reputesemtex has a reputation beyond reputesemtex has a reputation beyond reputesemtex has a reputation beyond reputesemtex has a reputation beyond reputesemtex has a reputation beyond reputesemtex has a reputation beyond reputesemtex has a reputation beyond reputesemtex has a reputation beyond reputesemtex has a reputation beyond repute
Default

Quote:
Originally Posted by Diversion View Post
Wow.. that sounds like a nice exhaust is already on the car.. I might do this for a week and see how I like it.. maybe it'll give me an idea of what it's like to own an exhaust? Thoughts?

Edit: Yikes, it looks like the pipes are pointing upwards into the car? Think that will burn something up?
I think it'd be risky to drive around like that for any prolonged length of time.
__________________
"There are no small accidents on this circuit." -- Ayrton Senna
316.8whp & 248 ft/lbs (Dyno Dynamics) | 319whp & 256 ft/lbs (DynoJet) (04/23/10)
Stillen G3 CAI, CBE, Pulley / F.I. LTH / GTSpec Ladder Brace / Setrab Oil Cooler / UpRev-tuned by Forged Perf.
semtex is offline   Reply With Quote
Old 06-02-2009, 02:48 PM   #12 (permalink)
Base Member
 
butters167's Avatar
 
Join Date: May 2009
Location: Oklahoma
Posts: 59
Drives: 6sp 370Z sport pkg
Rep Power: 15
butters167 is on a distinguished road
Default

I'm still waiting on my 5zigen exhaust which is still about two weeks out. I may do this until my exhaust gets here. I dont have any long drives planned between now and then so I think I'll be okay, plus it means less to take off when it gets here.
butters167 is offline   Reply With Quote
Old 06-02-2009, 03:11 PM   #13 (permalink)
A True Z Fanatic
 
SoCal 370Z's Avatar
 
Join Date: Feb 2009
Location: US of A
Posts: 2,842
Drives: Answers
Rep Power: 33
SoCal 370Z has a reputation beyond reputeSoCal 370Z has a reputation beyond reputeSoCal 370Z has a reputation beyond reputeSoCal 370Z has a reputation beyond reputeSoCal 370Z has a reputation beyond reputeSoCal 370Z has a reputation beyond reputeSoCal 370Z has a reputation beyond reputeSoCal 370Z has a reputation beyond reputeSoCal 370Z has a reputation beyond reputeSoCal 370Z has a reputation beyond reputeSoCal 370Z has a reputation beyond repute
Talking

Ahhhhh...nothing like the odorless fumes of carbon monoxide in the morning whilst driving to Richard Wagner's "Ride of the Valkyries"!
__________________
( Click to show/hide )

Last edited by SoCal 370Z; 06-02-2009 at 03:52 PM.
SoCal 370Z is offline   Reply With Quote
Old 06-02-2009, 03:22 PM   #14 (permalink)
Base Member
 
butters167's Avatar
 
Join Date: May 2009
Location: Oklahoma
Posts: 59
Drives: 6sp 370Z sport pkg
Rep Power: 15
butters167 is on a distinguished road
Default

Batman when you were making your video did you happen to check and see how hot everything got underneath with the exhaust after you made your runs.
xerokiler likes this.
butters167 is offline   Reply With Quote
Old 06-02-2009, 03:42 PM   #15 (permalink)
Enthusiast Member
 
Phimosis's Avatar
 
Join Date: May 2009
Location: Oildale, CA
Posts: 412
Drives: 2013 911 4S
Rep Power: 415
Phimosis has a reputation beyond reputePhimosis has a reputation beyond reputePhimosis has a reputation beyond reputePhimosis has a reputation beyond reputePhimosis has a reputation beyond reputePhimosis has a reputation beyond reputePhimosis has a reputation beyond reputePhimosis has a reputation beyond reputePhimosis has a reputation beyond reputePhimosis has a reputation beyond reputePhimosis has a reputation beyond repute
Default

I did this to my car before I got any aftermarket parts.

I ran it like this for right at one week. I did worry about fumes, heat, melting things, but I kept checking and everything looked fine..... I also made sure I was always moving.... and even shut it off at stop lights.

The sound is bad azz. It's way racier than my Stillen exhaust, but is about twice as loud (3db). I love the "cackle" when you come off the throttle for shifts or when when you use compression deceleration after downshifts.

If you chop up your rear muffler section and reuse the tips, you could have "custom" exhaust a system built for under $100.

The downsides: 1) It's too loud for everyday use and would be annoying on long drives or taking your boss to lunch. 2) you could easily get ticketed with that sound level if a cop saw you on the throttle. 3) It's still small diameter tubing and you're probably not ganing hp. 4) There's a lot of droning. This may be from exhaust pulses hitting the heat shield over the gas tank and may go away with exahust tips in the appropriate location.

PS. Batman, can you repost the original "muffler delete" video to youtube without the music or post that video to a different site so we can see the full length vid in all its glory?

Thanks,

Phim

Advice on exhaust?

Last edited by Phimosis; 06-02-2009 at 03:49 PM.
Phimosis is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
What would you like to add delete or change about the 370Z inspector10k Nissan 370Z General Discussions 42 06-25-2009 11:03 PM
HKS LEGAMAX Premium muffler for 370Z will be released later this year AK370Z Intake/Exhaust 32 05-02-2009 03:34 AM
Which Muffler would you get for your 370Z Z34? AK370Z Nissan 370Z General Discussions 45 03-06-2009 02:47 PM
EXAS EVO Tune Muffler for Nissan 370Z 12.18.08 AK370Z Intake/Exhaust 21 01-09-2009 06:52 PM
ZELE: Titanium Muffler development for the 370Z 12.15.08 AK370Z Intake/Exhaust 17 12-15-2008 03:52 PM


All times are GMT -5. The time now is 10:38 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2