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Puddle Jumper
Posts: 28
Basehor, Ks. | Hi-just joined the Vision-Riders. Great site. Good info. Took the plunge from Harley
to Vision('08). First thing is to get rid of the pathetic mufflers. When I removed the right
side muffler, I noticed some type of baffle built into the very end of the headpipe. Is this a
"wisdom tooth" that can be removed or is it an essential piece? Just wondering..
Thanks |
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Visionary
Posts: 1632
Jasper, MO | I'm no expert, but I've been told that it is a torque cone, and that you will lose low speed torque if you remove it.
Ronnie |
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Iron Butt
Posts: 935
Rockford, IL | What you are seeing is called an "Exhuast Velocity Device" and while removing it will change the sound of the exhaust it will also hurt the overall performance of the bike.
So....yea...ya could say that it is "essential" |
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Puddle Jumper
Posts: 28
Basehor, Ks. | Thank you all. No torque=bad. I am not touching the device. Allen |
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Tourer
Posts: 311
Atlanta Area | Search for Atom Bombs on this forum... The cheapest and best sounding muffler mod for your Vision...
And, no, I don't make a dime off em... (kinda wish I did...) |
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Tourer
Posts: 432
Gettysburg, 2008 Tour Premium | Dont be too quick to toos the stock pipes. They can be made to work very well by just punching out the baffle. I did that and added a Lloyds VFC fuel controler, Performance A/F and the difference is night and day from stock. Not much louder than stock though. I would rather make power than noise any day. |
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Puddle Jumper
Posts: 38
Galt California | Exactly how and what did you use to punch out the baffle. Did you notice a difference with just your exhaust mod or did you do the whole shebang at once?? "tell me more grasshopper"  |
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Tourer
Posts: 466
Grand Cane, LA | I believe what you are describing is the precious metal catalytic honeycomb that is in the headpipe. Yes, it can be removed with some persuasion, but it will make your bike no longer smog legal, that is if your worried about those sort of things. It will also relieve a lot of back pressure and quick heat-up for the O2 sensors that is essential for these engines, so it is really not a good idea. |
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Iron Butt
Posts: 1117
Northeast Ohio | atvtinker - 2009-11-27 2:59 AM
I believe what you are describing is the precious metal catalytic honeycomb that is in the headpipe. Yes, it can be removed with some persuasion, but it will make your bike no longer smog legal, that is if your worried about those sort of things. It will also relieve a lot of back pressure and quick heat-up for the O2 sensors that is essential for these engines, so it is really not a good idea.
+1 |
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Vision exhaust question