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+ 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

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Old 06-02-2009, 11:49 AM   #1 (permalink)
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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
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Old 06-02-2009, 11:52 AM   #2 (permalink)
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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.
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Old 06-02-2009, 11:53 AM   #3 (permalink)
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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!
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Old 06-02-2009, 12:01 PM   #4 (permalink)
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That's actually not bad at all.
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Old 06-02-2009, 12:04 PM   #5 (permalink)
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nothing to write home about.
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Old 06-02-2009, 12:05 PM   #6 (permalink)
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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
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Old 06-02-2009, 12:07 PM   #7 (permalink)
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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.
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Old 06-02-2009, 12:42 PM   #8 (permalink)
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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.
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Old 06-02-2009, 12:49 PM   #9 (permalink)
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That actually sounds sick - just dont melt your bumper like this guy
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Old 06-02-2009, 01:40 PM   #10 (permalink)
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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?

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Old 06-02-2009, 01:46 PM   #11 (permalink)
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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.
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Old 06-02-2009, 02:48 PM   #12 (permalink)
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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.
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Old 06-02-2009, 03:11 PM   #13 (permalink)
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Old 06-02-2009, 03:22 PM   #14 (permalink)
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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.
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Old 06-02-2009, 03:42 PM   #15 (permalink)
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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,

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Advice on exhaust?

Last edited by Phimosis; 06-02-2009 at 03:49 PM.
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