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04-03-2016, 11:16 PM,
#1
remove baffle from stock exhaust. possible?
Hello. I am new to the forum and I would like to know what would happen if i remove the baffles from the stock exhaust of a vstar classic 650.
Mind you this is my first bike and i like the looks of the stock exhaust.
basically i am trying to see if i leave the inside of the pipes free would make it sound better without buying aftermarket pipes and rather spend money on rejetting it.
i tried drilling holes in the exhaust but i didn't hear so much of a difference.
any advice would be great.
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04-04-2016, 11:50 AM, (This post was last modified: 04-04-2016, 11:56 AM by pauli466.)
#2
RE: remove baffle from stock exhaust. possible?
(04-03-2016, 11:16 PM)illbethejudge Wrote: Hello. I am new to the forum and I would like to know what would happen if i remove the baffles from the stock exhaust of a vstar classic 650.
Mind you this is my first bike and i like the looks of the stock exhaust.
basically i am trying to see if i leave the inside of the pipes free would make it sound better without buying aftermarket pipes and rather spend money on rejetting it.
i tried drilling holes in the exhaust but i didn't hear so much of a difference.
any advice would be great.
i removed just the final baffle then cut the final pipe back as far as possible, and it sounds just right nice mellow rumble at 1/4 to 1/2 throttle after 1/2 throttle it's pretty darn loud. loud enough to get stopped ( depending where you live ) the plugs are reading border line lean so i'm sure if opened the muffler further i would need to enrichen the carbs, probably would need to shim the jet needle at the very least. i lost a tiny amount of torque at low speed but gained better performance at the top end so it's trade off i can live with.
Lightbulb dumb bikers don't get to be old bikers
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04-04-2016, 12:47 PM,
#3
RE: remove baffle from stock exhaust. possible?
do you have pictures to see how it looks?
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04-04-2016, 01:47 PM, (This post was last modified: 04-04-2016, 01:52 PM by pauli466.)
#4
RE: remove baffle from stock exhaust. possible?
(04-04-2016, 12:47 PM)illbethejudge Wrote: do you have pictures to see how it looks?
it looks like an open muffler. after painting the inside with vht black you'd have shine a bright light in the hole to see the cutoff pipe at the second baffle. just looking into muffler with no light all you'd see is a black hole. but if a cop was checking to see if it was gutted, his probe would hit the second baffle and he would probably just give ya a warning and let it go at that. if the inside pipe is neatly cut and not hacked out he'd have a hard time telling if it was modified.
Lightbulb dumb bikers don't get to be old bikers
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04-06-2016, 10:56 PM, (This post was last modified: 04-06-2016, 11:31 PM by illbethejudge.)
#5
RE: remove baffle from stock exhaust. possible?
This is what i ended up with after removing the first baffle. I used a hole saw to remove it but still not loud enough.


Attached Files Thumbnail(s)
   
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04-06-2016, 11:06 PM,
#6
RE: remove baffle from stock exhaust. possible?
If your muffler is the same as the 1100 it will have 3 chambers inside. Each one is offset to the previous one. I know removing one doesnt require a rejett,not sure on the other two. I removed my outside one,and slash cut the end so the cone is gone. This weekend will be removing the other two baffle chambers and doing the washer trick to compensate for back pressure. Will let you know how it goes and post pics....
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04-06-2016, 11:09 PM,
#7
RE: remove baffle from stock exhaust. possible?
that will be awesome. thanks.
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04-09-2016, 08:27 AM,
#8
remove baffle from stock exhaust. possible?
(04-06-2016, 11:06 PM)ajclockga Wrote: If your muffler is the same as the 1100 it will have 3 chambers inside. Each one is offset to the previous one. I know removing one doesnt require a rejett,not sure on the other two. I removed my outside one,and slash cut the end so the cone is gone. This weekend will be removing the other two baffle chambers and doing the washer trick to compensate for back pressure. Will let you know how it goes and post pics....


I am thinking about trying something similar. You mentioned "doing the washer trick to compensate for back pressure", can you explain the washer trick to me? Thanks!
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04-09-2016, 08:34 PM,
#9
RE: remove baffle from stock exhaust. possible?
(04-09-2016, 08:27 AM)Yamahopper Wrote:
(04-06-2016, 11:06 PM)ajclockga Wrote: If your muffler is the same as the 1100 it will have 3 chambers inside. Each one is offset to the previous one. I know removing one doesnt require a rejett,not sure on the other two. I removed my outside one,and slash cut the end so the cone is gone. This weekend will be removing the other two baffle chambers and doing the washer trick to compensate for back pressure. Will let you know how it goes and post pics....
the washer trick is just an eye bolt with a washer and bolt sandwiched over the eye opening then you drill a hole through the side of the muffler and mount the blocked eye so it's centered in the muffler. i never like them because there will be an ugly nut on the outside of the muffler holding the eye bolt in place



I am thinking about trying something similar. You mentioned "doing the washer trick to compensate for back pressure", can you explain the washer trick to me? Thanks!
Lightbulb dumb bikers don't get to be old bikers
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04-09-2016, 09:03 PM,
#10
RE: remove baffle from stock exhaust. possible?
Pictures would be nice. I posted a picture of how my exhaust look after removing the cone (first baffle) is louder now just not loud enough.
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04-22-2016, 07:33 PM,
#11
RE: remove baffle from stock exhaust. possible?
(04-09-2016, 09:03 PM)illbethejudge Wrote: Pictures would be nice. I posted a picture of how my exhaust look after removing the cone (first baffle) is louder now just not loud enough.
remove the final pipe that's just hanging now and it will be louder, you'll need a dremel with a flex hose attachment. or you twist and rock it til the weld breaks at the next baffle but you'll need a long chisel to open the hole so the weld on the pipe can pass through the baffle check your plugs after any kind of exhaust modification for a lean condition so you don't burn valves.
Lightbulb dumb bikers don't get to be old bikers
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