If the sound of the stock pipes are a bit too tame for your taste, here's a great simple and free fix. My bike now has a "throatier" more "beefy" idle and sound through all the gears--it's got that V-twin "rumble."
tools needed: - 1/2" drill bit (may want to start with a smaller size bit for a pilot hole) - drill - punch - hammer
directions: 1. Use the hammer & punch to create a dimple 2. Drill a hole with the smaller bit 3. Now use the 1/2" bit 4. Repeat for the number of holes you'd like
FAQs: - The metal in the end of the pipes is typical thin muffler material---it drills very easily.
- More holes = more volume and different sound. I drilled one hole in each pipe, then drove around through all gears. I repeated that procedure until the number of holes produced a sound that my ears liked. I stopped at 3. A lot of guys like 4 and then still others like 8. I've even seen a guy put a screw in a hole because he got it too l oud.
- Don't worry about the shavings--won't hurt a thing.
- This won't affect in carbeauation adjustments. There is another set of baffles further up in the pipes, so mods at this set of baffles don't affect the engine.
- People won't see the holes unless they bend over to look up into your pipes--this cosmetically goes unnoticed.
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