I have been looking at this mod for some time and think it is great. But, in all my reading and looking at the pictures I see no reference to the brackets for the pipes. Do you C.R.A.P. moders have any answers for me? I have an 04 C model. Thank you for your time.
Straight Pipe Mod question
thumper1300
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I had a feeling the 1800 with the big shots was louder, riding the 1300 with modified exhaust that day it did not seem nearly as loud too me. I know those baffles made a huge difference over just an open pipe. Now that was loud! :yikes:
Now I need to find out if there is any way of knowing if there is too much back pressure..
We are in for rain for the next couple of days so I am not sure how much more I will get to do for the time being.
I am looking for some longer chrome tips to use, wanting to see if it would deepen the tone a little more. But so far have not found much in the way of 2" longer the 9"
Now I need to find out if there is any way of knowing if there is too much back pressure..
We are in for rain for the next couple of days so I am not sure how much more I will get to do for the time being.
I am looking for some longer chrome tips to use, wanting to see if it would deepen the tone a little more. But so far have not found much in the way of 2" longer the 9"
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34 Posts
If you are gonig to redo the extentions you might want to consider cutting the front pipe just in front of the stop. This will eliminate the funky angle.
Then if you reverse the reducer on the rear pipe the distance past the heat sheild will still be the same for both pipes.
Then if you reverse the reducer on the rear pipe the distance past the heat sheild will still be the same for both pipes.
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57 Posts
newbie alert
I am looking into doing this mod, and I wanted to get yall's opinions:
What if any other mods should be done in conjunction with the pipe mod (rejetting, scar mod, ect.)...
I know there had been a lot of chatter in other threads on this subject, but I wanted to get your opinions as it pertains to this particular mod.
FYI: running an 05 1300c with stock filter
I am looking into doing this mod, and I wanted to get yall's opinions:
What if any other mods should be done in conjunction with the pipe mod (rejetting, scar mod, ect.)...
I know there had been a lot of chatter in other threads on this subject, but I wanted to get your opinions as it pertains to this particular mod.
FYI: running an 05 1300c with stock filter
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34 Posts
IMHO if you don't change your airbox no other mods will be needed. This is generally the case when you install any after market pipes.
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34 Posts
Bonecarver,
Just finished the mod it's too late to light it off and the batteries in the camera are dead. Looks good and can't wait to give it a try.
Here is what I did for brackets. Took a two inch wide by about eight inch long flat stock and bent it to the shape to match the upper hole left from removing the original bracket. Then bent it a little more to match a clamp I took off the muffler and attached it to the pipe under the heat shield. After I paint the bracket it should not be noticible at all. The front pipe ended up the easy one. Went to Home Depot, in the fence section, and found a one and a half inch clamp used to hold fence to a pipe for less than a dollar. The clamp had arms on it that are about three inches long. Pulled it apart slipped it over the frame pressed it back together and thru bolted to another clamp taken from the old pipes. Was really happy to find there was no need to do any additional work on it. Pipes now feel nice and solid.
I know a picture is worth a thousand words but hope this gives you an idea of what I did.
Just finished the mod it's too late to light it off and the batteries in the camera are dead. Looks good and can't wait to give it a try.
Here is what I did for brackets. Took a two inch wide by about eight inch long flat stock and bent it to the shape to match the upper hole left from removing the original bracket. Then bent it a little more to match a clamp I took off the muffler and attached it to the pipe under the heat shield. After I paint the bracket it should not be noticible at all. The front pipe ended up the easy one. Went to Home Depot, in the fence section, and found a one and a half inch clamp used to hold fence to a pipe for less than a dollar. The clamp had arms on it that are about three inches long. Pulled it apart slipped it over the frame pressed it back together and thru bolted to another clamp taken from the old pipes. Was really happy to find there was no need to do any additional work on it. Pipes now feel nice and solid.
I know a picture is worth a thousand words but hope this gives you an idea of what I did.
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237 Posts
Thanks Thumper I've got an idea of what you did and will try to come up with some along the same lines.
I took the baffles out of mine today. There are 8 holes in each baffle where the wall of the baffle is pressed in to block off the center of the baffle. I took a screw drive and bent the part blocking the center of the baffle up until I could squeeze it with a pair of needle nose and bend it against the wall of the baffle thus opening up the center of the baffle.
I did this to 6 of the 8. So the center of the baffle is not totally open. This increased the sound level slightly (I will get a reading in the morning to see how much of an increase this caused).
I also noticed a felt increase in power, less vibration then with the stock baffle. So there was an improvement, I think the sound is a little better too.
![Image]()
You can see in the picture above how I opened up the baffle
Checked the sound level today. It went from 85. to 99 at an idle.
Holding the meter 45 degrees to the end of the pipes and about 20" away. Cranking the throttle I was hitting 121 on the decibel meter.
I took the baffles out of mine today. There are 8 holes in each baffle where the wall of the baffle is pressed in to block off the center of the baffle. I took a screw drive and bent the part blocking the center of the baffle up until I could squeeze it with a pair of needle nose and bend it against the wall of the baffle thus opening up the center of the baffle.
I did this to 6 of the 8. So the center of the baffle is not totally open. This increased the sound level slightly (I will get a reading in the morning to see how much of an increase this caused).
I also noticed a felt increase in power, less vibration then with the stock baffle. So there was an improvement, I think the sound is a little better too.
You can see in the picture above how I opened up the baffle
Checked the sound level today. It went from 85. to 99 at an idle.
Holding the meter 45 degrees to the end of the pipes and about 20" away. Cranking the throttle I was hitting 121 on the decibel meter.
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18 Posts
Bonecarver:
Where did you get those baffles from? Going to try the same thing. You should pick a name for your mod or something. 8) I haven't found a dependable way of securing the pipes yet. If someone could post pictures that'd be awesome.
Where did you get those baffles from? Going to try the same thing. You should pick a name for your mod or something. 8) I haven't found a dependable way of securing the pipes yet. If someone could post pictures that'd be awesome.
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237 Posts
corpsegrinder
I got them from JC Whitney. Took a month for them to show up hopefully you won't have to wait that long. I have seen them on Ebay too every once in a while.
I would like to try some others. I just need to find some that are 1 1/2".
3 times now I have registered for an account on crapmods so I could post the changes I made to the mod there, but I never get a confirmation e-mail so I guess I am not wanted there. The mod is not mine I just added another option to it.
Going to go out now and make a video of the sound perhaps you can get an idea from that.
I will also take things apart to get some pictures of what I did so you can see how I held things together but that may not be tonight.
![Image]()
Also just bought a set of longer straight chrome pieces (24") to see how those sound over the 9" curved ones.
I need to let someone else drive this thing down the road so I get and idea of how this thing sounds for my own self.
I got them from JC Whitney. Took a month for them to show up hopefully you won't have to wait that long. I have seen them on Ebay too every once in a while.
I would like to try some others. I just need to find some that are 1 1/2".
3 times now I have registered for an account on crapmods so I could post the changes I made to the mod there, but I never get a confirmation e-mail so I guess I am not wanted there. The mod is not mine I just added another option to it.
Going to go out now and make a video of the sound perhaps you can get an idea from that.
I will also take things apart to get some pictures of what I did so you can see how I held things together but that may not be tonight.
I need to let someone else drive this thing down the road so I get and idea of how this thing sounds for my own self.
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121 Posts
For clamps: Check out post #14
http://www.vtxoa.com/forums/showthread.php?t=203762&highlight=AUTOMOTIVE+EXHAUST+TIPS
http://www.vtxoa.com/forums/showthread.php?t=203762&highlight=AUTOMOTIVE+EXHAUST+TIPS
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1,621 Posts
sorry i didnt answer bro.........kinda lost track of this thread. no brackets, no problems
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8,333 Posts
My (limited) understanding is, as you start removing the backpressure you allow gasses to escape faster, as gasses escape the engine faster, the pipes heat up more, as they heat up more, they get hotter.
Again, my limited understanding. If that's not correct, please let me know. thx.
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1,294 Posts
striaght pipe mod
Here are pictures of my same as stright pipe mod, I cut the top header pipe off where the small kick was and welded a piece of same OD pipe, then ground down the welds (ended up looking perfect), this makes the top extension mount straight verticaly and horizontal. Then I made a small strap steel bracket to help support
the JCW mufflers I installed. Be running this setup for three years and no problems.
Here are pictures of my same as stright pipe mod, I cut the top header pipe off where the small kick was and welded a piece of same OD pipe, then ground down the welds (ended up looking perfect), this makes the top extension mount straight verticaly and horizontal. Then I made a small strap steel bracket to help support
the JCW mufflers I installed. Be running this setup for three years and no problems.
Attachments
I just did this mod, as well as the 2 5/8" pipe to cover the drive shaft.
It isn't as loud as I thought it would be, which is a good thing. I didn't want it extremely loud, and it isn't.
I may need to change the angle of the eye bolts, as I get a slight whistle in there. It may be due to having to make a few slice cuts to the reducers though. None of the auto parts stores here had the 2"OD and 1 1/2" ID, they were all 2"ID and 1 1/2"ID, so I took my dremel and made a few cuts on the larger portion to remove some of the metal and make the diameter slightly smaller.
As you can see, I haven't removed the exhaust bracket yet, as I just finished this about 15 minutes ago, and went for a quick spin. I noticed if you get on the throttle it can be loud, but it seems to level of once you get to cruising speed, and really isn't loud to the point of irritating. Very happy with it, especially since the cost was under $30.
I was taking more pictures when my batteries died on me, so this is the only one I have for now, once the batteries get recharged, I can take a few more, as well as get a video clip of it with my camera.
Any hints about the whistle I'm hearing? I will raise the eye bolts a little, as right now they are only a bolt high inside the exhaust pipe, but I do have them at a 45% angle in there, not sure if I should move them closer to 90% or not.
It isn't as loud as I thought it would be, which is a good thing. I didn't want it extremely loud, and it isn't.
I may need to change the angle of the eye bolts, as I get a slight whistle in there. It may be due to having to make a few slice cuts to the reducers though. None of the auto parts stores here had the 2"OD and 1 1/2" ID, they were all 2"ID and 1 1/2"ID, so I took my dremel and made a few cuts on the larger portion to remove some of the metal and make the diameter slightly smaller.
As you can see, I haven't removed the exhaust bracket yet, as I just finished this about 15 minutes ago, and went for a quick spin. I noticed if you get on the throttle it can be loud, but it seems to level of once you get to cruising speed, and really isn't loud to the point of irritating. Very happy with it, especially since the cost was under $30.
I was taking more pictures when my batteries died on me, so this is the only one I have for now, once the batteries get recharged, I can take a few more, as well as get a video clip of it with my camera.
Any hints about the whistle I'm hearing? I will raise the eye bolts a little, as right now they are only a bolt high inside the exhaust pipe, but I do have them at a 45% angle in there, not sure if I should move them closer to 90% or not.
Attachments
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Thank you all for the replies. Still working on the pictures. Every time I have the time to ride it has rained. Did manage to get out for a short ride and can report that I am very happy with the mod. The sound is not much greater than the aftermarket pipes I had on it but the tone is much deeper. Now the bike sounds as good as it looks!
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1,621 Posts
i'll try to find the dyno link for ya and post it bro......seems if ya run the baffel full closed you lose a little at the low end/takeoff......if ya run 'em full open you lose at topend or cruisin speeds but gain at lowend or takeoff......45 seems to give the best at both ends
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found it........... http://www.nightrider.com/biketech/exhaust.htm#dyno_results
pretty sure these are for a harley but you should see similar results on the X
Thanks ponyz, I guess I'm good with the 45 degree angle.
I'll try raising the bolt a little more inside the pipe. If I can't get a hold of my friend to weld a couple of washer to the eyebolts I have, I'll just pick up a couple of thumbscrews. I had the eyebolts already, so it saved a trip to the store, but the thumbscrews will be cheap enough to buy.
I'll try raising the bolt a little more inside the pipe. If I can't get a hold of my friend to weld a couple of washer to the eyebolts I have, I'll just pick up a couple of thumbscrews. I had the eyebolts already, so it saved a trip to the store, but the thumbscrews will be cheap enough to buy.
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1,621 Posts
not a problem bro....i run mine at 45. i used a 1 1/2 washer. fills most of the inside of the pipe. 1/8 around the washer with the hole in the center and she ran alot better w/o jetting or changin the filter. i did eventually rejet and went to a k&n and OMG what a difference. gonna get redyno'd next week.
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