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Main Area => General GS500 Discussion => Topic started by: system32 on September 24, 2013, 05:43:42 AM

Title: shortened stock muffler
Post by: system32 on September 24, 2013, 05:43:42 AM
in last week i shortened my muffler. it looks and sounds very good see pictures and video
http://www.youtube.com/watch?v=OlC1JO3L4pM&feature=youtu.be


[attachment deleted by admin]
Title: Re: shortened stock muffler
Post by: tcmia on September 24, 2013, 05:49:28 AM
I like it. Looks nice.
Title: Re: shortened stock muffler
Post by: Dr.McNinja on September 24, 2013, 08:26:17 AM
It's strange how these pictures aren't making any noise...
Title: Re: shortened stock muffler
Post by: system32 on September 24, 2013, 08:46:43 AM
Quote from: Dr.McNinja on September 24, 2013, 08:26:17 AM
It's strange how these pictures aren't making any noise...
:D :D :D :D :D it seems your pc has sound problems
Title: Re: shortened stock muffler
Post by: radodrill on September 24, 2013, 09:41:30 AM
Pleeeaaassseeee post a video clip  :bs:  We need to hear it
Title: Re: shortened stock muffler
Post by: system32 on September 24, 2013, 10:35:53 AM
:))
Title: Re: shortened stock muffler
Post by: pliskin on September 24, 2013, 06:28:00 PM
Damn! What kind of limp wrist throttle twist is that? We want to hear it at the red line.
Title: Re: shortened stock muffler
Post by: dread on September 24, 2013, 08:12:18 PM
Can you do that shorten the stock muffler on one of the older gs 500 as well such as a 2001 model ?
Title: Re: shortened stock muffler
Post by: 007brendan on September 24, 2013, 09:06:11 PM
Quote from: dread on September 24, 2013, 08:12:18 PM
Can you do that shorten the stock muffler on one of the older gs 500 as well such as a 2001 model ?

Exhaust is the same for all years, so it should work the same.
Title: Re: shortened stock muffler
Post by: system32 on September 25, 2013, 12:24:55 AM
Quote from: pliskin on September 24, 2013, 06:28:00 PM
Damn! What kind of limp wrist throttle twist is that? We want to hear it at the red line.

what do you think, does my neighbor also want to hear it at the red line at night?  :D
Title: Re: shortened stock muffler
Post by: codajastal on September 25, 2013, 12:59:37 AM
Quote from: system32 on September 25, 2013, 12:24:55 AM
Quote from: pliskin on September 24, 2013, 06:28:00 PM
Damn! What kind of limp wrist throttle twist is that? We want to hear it at the red line.

what do you think, does my neighbor also want to hear it at the red line at night?  :D
Yes..........yes your neighbor NEEDS to hear it in all its glory :icon_twisted:
Title: Re: shortened stock muffler
Post by: Janx101 on September 25, 2013, 01:49:25 AM
Even if it's only to appreciate that you don't let the noise loose the rest of the time.... No max level means no comparison and 'huh least he isn't revving it like that other time!'  :icon_twisted:
Title: Re: shortened stock muffler
Post by: dread on September 25, 2013, 03:42:23 AM
So you just used a cutting wheel or die grinder to cut it off then welded it back together?
Title: Re: shortened stock muffler
Post by: dread on September 25, 2013, 03:47:46 AM
Also did you have to rejet the carbs?
Title: Re: shortened stock muffler
Post by: system32 on September 25, 2013, 11:24:56 AM
Quote from: dread on September 25, 2013, 03:42:23 AM
So you just used a cutting wheel or die grinder to cut it off then welded it back together?

(http://kavkasioni-mall.ge/image/cache/data/00159-250x300.jpg)

(http://www.mymarket.ge/photos/orig/0909/3787954_1.jpg)

i used this tools :)
Title: Re: shortened stock muffler
Post by: system32 on September 25, 2013, 11:28:31 AM
Quote from: dread on September 25, 2013, 03:47:46 AM
Also did you have to rejet the carbs?

i think it does not needs rejeting. after cutting muffler i feel more power and acceleration :) sadly in Georgia we do't have dyno.
i even dont know what size of jets i'm useing. its stock i think
Title: Re: shortened stock muffler
Post by: dread on September 25, 2013, 02:08:44 PM
I know its probably very self explanatory but would you happen to have made a tutorial for us gs ers that are newbies?  :dunno_black:
Title: Re: shortened stock muffler
Post by: The Buddha on September 25, 2013, 03:07:42 PM
The first 6-5" of the stock muffler - aka the part closest to the head is a straight can.
If you had put in a few min of work and thought, You'd have a proper fiberglass stuffed baffle fitted can.
What you needed to have done is to put a perforated metal steet rolled into a tube - easy effectively HD issue crap, rolled over a steel pipe/bar and tached or tied with wire ... and put that in the snout and weld it to that, then stuff fiber glass around it and slide it on and weld it on, or you may have to bolt it on ... so you can replace the fiberglass ... like who ever does that ...

Anyway good work, you should've put pics with it cut ... So my method will have a nice put this here and weld it there and what not.

Cool.
Buddha.
Title: Re: shortened stock muffler
Post by: yamahonkawazuki on September 25, 2013, 03:30:30 PM
AHAHAHAHA the Buddha returneth. your ospts made perfect sense when you were on meds following surgery. now theyre back to a bit of this, a bit of that, some of this etc. and a few BTWs
Title: Re: shortened stock muffler
Post by: dread on September 25, 2013, 04:45:21 PM
So just cut the part closest to the engine or the part toward the end?
Title: Re: shortened stock muffler
Post by: dread on September 26, 2013, 03:41:45 AM
I'm just confused on what you cut do you cut the end off the original pipe and you just weld pack on the little black tip thingy back on at the end of the new shortened pipe correct?
Title: Re: shortened stock muffler
Post by: The Buddha on September 26, 2013, 04:17:31 AM
Pull the exhaust off and look @ the part that is facing the wheel.
Follow from the part starts. There is a spot weld about 6" in.
There the muffler has the first baffle part - aka - a piece like a pasta sauce bottle top welded shutting of the flow except for a hole the size of a dime and that has a tube taking it to the part near the open tip ... except it doesn't go to the outside ... it has another baffle there, and there it doubles back into a center chamber and from there exits through a tiny hole to a pipe to the outside.

Anyway find that spot weld, and hack it near it ... you actually dont even have to cut it before it really. Its better to cut it after it ... If it was left in place, you can screw the end cap to it using sheet metal screws.

Then you can cut a hole in the middle of that.
Then cut the end cap off the part you have "cut off".
Then get perforated metal and scroll it and stuff it in the hole you drilled in the pasta sauce can.
Or you actually weld that scroll to the end cap.
Then make the end cap sit on the baffle and screw the bugger in with sheet metal screws.

That way you can remove the end cap, and scroll in fiberglass and put it back in.

I did my SV that way, unscrew the end cap and the perforated steel tube comes with it, except I didn't cut that can, I bashed the crap out of it and pulled the innard pipes out. However you cant take the can off in the GS, and if you bashed it hard enough to remove the baffle, you will summarily turn the exhaust into a mangled mess.

Cut away and post pics ...

I still think a simple slip on is better, easier and what not IMHO ... but hey, that is just me. Its a 30 second job if you got the right can. In some cases you dont even need to pull the header off. I once slipped on a D&D in a matter of minutes.

Cool.
Buddha.
Title: Re: shortened stock muffler
Post by: anoopb on September 26, 2013, 05:09:10 AM
Quote from: The Buddha on September 26, 2013, 04:17:31 AM

I did my SV that way, unscrew the end cap and the perforated steel tube comes with it, except I didn't cut that can, I bashed the crap out of it and pulled the innard pipes out. However you cant take the can off in the GS, and if you bashed it hard enough to remove the baffle, you will summarily turn the exhaust into a mangled mess.


the end cap unscrews? the part where the exhaust leaves the muffler? i'm even more confused now on how to do this and i'm totally willing to try it but i'm not skilled with this type of work one bit.

:icon_eek:
Title: Re: shortened stock muffler
Post by: The Buddha on September 26, 2013, 05:23:44 AM
Quote from: anoopb on September 26, 2013, 05:09:10 AM
Quote from: The Buddha on September 26, 2013, 04:17:31 AM

I did my SV that way, unscrew the end cap and the perforated steel tube comes with it, except I didn't cut that can, I bashed the crap out of it and pulled the innard pipes out. However you cant take the can off in the GS, and if you bashed it hard enough to remove the baffle, you will summarily turn the exhaust into a mangled mess.


the end cap unscrews? the part where the exhaust leaves the muffler? i'm even more confused now on how to do this and i'm totally willing to try it but i'm not skilled with this type of work one bit.

:icon_eek:

The end cap on an sv 1000 used to be unscreweable. Not the GS, that sucker welded shut all the way across.
Someone need to cut it like I said and post pics.

Cool.
Buddha.
Title: Re: shortened stock muffler
Post by: mustangGT90210 on September 26, 2013, 07:00:55 AM
Not a GS, but I just shortened the muffler on my '94 gsxr a couple days ago. Sounds like it's about the same deal. I used a 4.5" angle grinder, a hammer, screwdriver(prybar) and some channel locks. My grinder couldn't reach fully in to cut the inner pipes in the muffler, so it took a while. I also wasn't working very fast. In the end it took 4 hours total, plus the 10 minutes at the muffler shop to have the tip welded back on.

(https://scontent-b.xx.fbcdn.net/hphotos-prn1/1234916_10201989639964856_957695612_n.jpg)

(https://scontent-a.xx.fbcdn.net/hphotos-frc3/q71/s720x720/1375848_10202009474380704_847055724_n.jpg)

(https://scontent-a.xx.fbcdn.net/hphotos-ash3/q77/s720x720/66832_10202020955267719_1386211473_n.jpg)

I'll get a real exhaust later, at least now I can hear my bike :)

Title: Re: shortened stock muffler
Post by: system32 on September 26, 2013, 08:09:01 AM
Quote from: dread on September 26, 2013, 03:41:45 AM
I'm just confused on what you cut do you cut the end off the original pipe and you just weld pack on the little black tip thingy back on at the end of the new shortened pipe correct?
i cut the end of the muffler and then weld its head
Title: Re: shortened stock muffler
Post by: The Buddha on September 26, 2013, 09:59:52 AM
Quote from: yamahonkawazuki on September 25, 2013, 03:30:30 PM
AHAHAHAHA the Buddha returneth. your ospts made perfect sense when you were on meds following surgery. now theyre back to a bit of this, a bit of that, some of this etc. and a few BTWs

You know I've been thinking, I should poen a magazine and publish articles where there seems to be some kind of point but it eventually turns out to just be jumbled up garbage ... I think I'll call the magazine ... wait for it ...





VAGUE.

Cool.
Buddha.
Title: Re: shortened stock muffler
Post by: yamahonkawazuki on September 26, 2013, 11:01:53 AM
Quote from: The Buddha on September 26, 2013, 09:59:52 AM
Quote from: yamahonkawazuki on September 25, 2013, 03:30:30 PM
AHAHAHAHA the Buddha returneth. your ospts made perfect sense when you were on meds following surgery. now theyre back to a bit of this, a bit of that, some of this etc. and a few BTWs

You know I've been thinking, I should poen a magazine and publish articles where there seems to be some kind of point but it eventually turns out to just be jumbled up garbage ... I think I'll call the magazine ... wait for it ...





VAGUE.

Cool.
Buddha.
Hmm full of off the wall rants that move from one topic to another. and change often lol. that would be an interesting read Eh? lol
Title: Re: shortened stock muffler
Post by: The Buddha on September 26, 2013, 11:45:41 AM
Quote from: yamahonkawazuki on September 26, 2013, 11:01:53 AM
Quote from: The Buddha on September 26, 2013, 09:59:52 AM
Quote from: yamahonkawazuki on September 25, 2013, 03:30:30 PM
AHAHAHAHA the Buddha returneth. your ospts made perfect sense when you were on meds following surgery. now theyre back to a bit of this, a bit of that, some of this etc. and a few BTWs

You know I've been thinking, I should poen a magazine and publish articles where there seems to be some kind of point but it eventually turns out to just be jumbled up garbage ... I think I'll call the magazine ... wait for it ...





VAGUE.

Cool.
Buddha.
Hmm full of off the wall rants that move from one topic to another. and change often lol. that would be an interesting read Eh? lol

Yea and madonna will sing a song with it as the chorus line ...

Vague vague vague ...

Cool.
Buddha.