Punched out the baffles on stock syna pipes
Tourer
Joined: Aug 2007
Posts: 384
Likes: 0
From: Mesa, AZ
RE: Punched out the baffles on stock syna pipes
Fuel injected or carbed? I did the same to my 02 carbed dyna and it just runs a little lean now. Surges when I'm at 2000 rpms or so. No big deal, I just need a new air cleaner and a rejet.
If you're fuel injected you'll need remapped. I don't know much about fuel injected bikes though, just that.
Either way, when you get the new pipes, you're going to need to do something with the air cleaner and jets or remapping.
If you're fuel injected you'll need remapped. I don't know much about fuel injected bikes though, just that.
Either way, when you get the new pipes, you're going to need to do something with the air cleaner and jets or remapping.
Tourer
Joined: Oct 2006
Posts: 422
Likes: 0
From:
RE: Punched out the baffles on stock syna pipes
Changing pipes doesn't affect the whole system as much as changing to a high flow air cleaner. On some bikes, changing pipes doesn't necessarily require a re-map or re-jet. Just look for any adverse reaction like increased engine temp.
So how does it sound baffle-less?
So how does it sound baffle-less?
May our Moderator Rest in Peace
Joined: Sep 2006
Posts: 11,386
Likes: 35
From: Rochester, NY
RE: Punched out the baffles on stock syna pipes
I punched out the baffle in the stock pipes on my bike, till something better (and the money) comes along.
After a 1000 milesof keeping an eye on the plugsthe only thing that's changed is the sound.
After a 1000 milesof keeping an eye on the plugsthe only thing that's changed is the sound.
Seasoned HDF Member
Joined: Dec 2003
Posts: 7,090
Likes: 3,882
From: Murfreesboro , TN
RE: Punched out the baffles on stock syna pipes
I punched them out on my 03 Lowrider and ran it that way for a few months. Didn't experience any problems. Some people have said the sound isn't great with punched out baffles, but mine sounded nice and loud! No whine or high pitched noise.....
Road Captain
Joined: Jun 2006
Posts: 579
Likes: 2
From:
RE: Punched out the baffles on stock syna pipes
Denver has the new law with the EPA stamp on your pipes. I wonder if I could put back on stock pipes and then punch them out to get the sound back?
[IMG]local://upfiles/13911/16CDB9F6600A43F8AED338FFB45B592D.jpg[/IMG]
[IMG]local://upfiles/13911/16CDB9F6600A43F8AED338FFB45B592D.jpg[/IMG]
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May our Moderator Rest in Peace
Joined: Sep 2006
Posts: 11,386
Likes: 35
From: Rochester, NY
RE: Punched out the baffles on stock syna pipes
ORIGINAL: monsterdeluxe
Denver has the new law with the EPA stamp on your pipes. I wonder if I could put back on stock pipes and then punch them out to get the sound back?
Denver has the new law with the EPA stamp on your pipes. I wonder if I could put back on stock pipes and then punch them out to get the sound back?
I did mine in a star pattern, then used a length of 1/2" 13 threaded rod with a 21mm 1/2" socket held in place witha couple of nutsand pushed that throughusing a big hammer to flatten out the raggedy edges.
If the mufflers are off the bike its even easier because you can stand them up on a piece od wood and not have to worry about the socket getting caught up inside. It will just fall out the other end once it gets passed where the plate was.
If you put a plate or a some big washers on the end with another nut. You can use them to limit how far the socket goes in and use the nut to "pull" the socket back out, cause it WILL get jammed in hard enough so you can't pull it out by hand while forming the jagged metal ends.
Here's the main "tools" you need to do the job
This is the pile of "parts" needed toclean up the regged edges. 4 washers, 3 nuts, and a 3' piece of 1/2" 13 threaded rod, grand total cost, about $4.75 at the local hardware store. The socket I already had.
The end goes together like this.
And looks like this assembled.
The other washers and nut go on the end like I said to prevent the socket from going in too far, and to make it easy to get out again. Just use a wrench on the nut and it can be used to "jack" the socket back out.
It took me less than 20 minutes to knock out the plate and another 10 or less to use this thing on them to clean them up.
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Road Master
Joined: May 2005
Posts: 1,115
Likes: 4
From: Central GA
RE: Punched out the baffles on stock syna pipes
I have the SEII slip-ons and just pulled out the baffles, drilled out each baffle hole to 1" and reinstalled them. Sounds louder at idle and under acceleration it really sounds good. My stock pipes are also "punched out" but, I like the sound of the SEII's better.
