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Discussion Starter #1
Anyone ever modify there stock pipes? I found this and was wondering if anyone has tried it.


How to Modify your V-Strom Mufflers



There are two modifications you can easily make. Either of these mods is compatible with the stock fuel injection maps.Mufflers with these modifications make less noise than Two Brothers mufflers.

Get a ½" to 1" metal-cutting hole saw and about a 12" extension for your electric drill. About $10 at Home Depot.Run the hole saw into the exhaust outlet and drill through the baffle about 10" into the muffler. This will make your mufflers somewhat louder.


Also, you can drill out holes in the end cap of the muffler. You can stop at step [2], or [3]. Here, all the material has been removed for maximum change. Personally, I stopped at [2]. This mod will also make your mufflers somewhat louder. Pictures and directions by Rick @ macdizzy.com


Here is the link http://motorcycleinfo.calsci.com/VStrom4.html#Pads
 

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IMHO....DON'T DO IT!!!! I drilled the holes, and thought it sounded like POO! Sounded like a leaky pod racer from Star Wars episode 1. :lol: I kinda liked it at first, cause it was louder. But, the more I listened, I ultimatley wished that I'd left them alone. Bite the bullet and get new exhausts.....its worth it. Not only louder, but deeper, lose signifigant weight, and my Strom runs better! Looks real purty too....I get allot of nice comments.
 

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Big B said:
IMHO....DON'T DO IT!!!! I drilled the holes, and thought it sounded like POO! Sounded like a leaky pod racer from Star Wars episode 1. :lol: I kinda liked it at first, cause it was louder. But, the more I listened, I ultimatley wished that I'd left them alone. Bite the bullet and get new exhausts.....its worth it. Not only louder, but deeper, lose signifigant weight, and my Strom runs better! Looks real purty too....I get allot of nice comments.
Thats what I was worried about, thanks for the advice. I'll leave it as is for now.
 

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I would have second thoughts about taking the hole saw to the inside. At least if you drill the endcap you could probably buy another if you don't like the sound that it makes. I have an 03 1000 and didn't like the sound of the stock mufflers so at the time there was only Staintune and 2 Brothers available. I didn't want to spring for the Staintunes so I bought the 2 Brothers. The finish and quality is very good but "boy" are they loud. There is no baffling inside, just an inner pipe with perforations that go into a packing material. I know everyone has different thoughts on sound and I enjoy a good sounding exhaust but you'd have thought that 2 Brothers would have tried to tone it down just a little. Don't get me wrong, they had a great sound, it was just too far on the illegal side for me especially with that big hole that went all the way back to the combustion chamber.
gbritnell
 

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Drilled 4 5/16's holes in my pipes and liked the sound. I though I would like more sound so I got some Skorpion pipes... Those were too loud and not as deep as the stock pipes with 4 holes.


I like the sound of the drilled with 4 holes..I disliked the Skorpion sound. Some people make as many as 6 holes and That turns out to be too many.

To each his own!!!
 

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Discussion Starter #6
sempervee said:
Drilled 4 5/16's holes in my pipes and liked the sound. I though I would like more sound so I got some Skorpion pipes... Those were too loud and not as deep as the stock pipes with 4 holes.


I like the sound of the drilled with 4 holes..I disliked the Skorpion sound. Some people make as many as 6 holes and That turns out to be too many.

To each his own!!!
Any way you can show me a pic? So you only drilled the end caps then? I would assume I could replace those if I didn't like the end result?
 

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Not sure I understand where you are coming from on the endcap issue. Are you talking about the black plastic with the allen head screws? That is not part of the pipe, just the heatshield. The back of the muffler, under the heat shield is not replaceable, unless you can do some fancy welding.
I have two friends that have drilled the exhust and it sounds pretty good, but the both did it in different ways and the both sound differnt. So you might want to investigate further.
 
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