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FOR THE DO-IT-YOURSELF DUCATI OWNER
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WARNING: After testing the mufflers for the first time there was an extreme popping upon deceleration. So, until I can find a cure I suggest not tearing into your mufflers. It looks as if I need to richen up my Power Commander. If you don't have any PC or chip to put in, I suggest not performing this mod. I don't want you to do any irreversible mods and have it sound like crap. Thanks.
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MUFFLER MODS
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$0
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Drill and Bits, Hammer, Chisel, Safety Goggles, Sawzall, Vice or Clamp
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The first step is to clamp the mufflers securely in either a vice (best choice) or to a table using a c-clamp or something similar. Then, take your drill and drill out the three rivets on the end and the two rivets holding the bracket on the side.
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Then tap the rivets out with a straight punch. Be sure to wear your safety goggles for all this impact work!
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Then you can attack the rear- take a chisel (not a wood chisel!) and tap around the perimeter of the end cap to separate it from the aluminum shell. You'll see that it'll come free with some effort.
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After it comes free, you can change angle and drive it completely out. It'll just drop out once you pound it out enough.
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Then, find a block of wood or a stack of newspapers to pound the end on. Grip the whole muffler like shown, and raise it up like a caveman trying to bludgeon dinner.....
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...and come down hard and square. After a couple of these bashings, the shell should separate from the body of the muffler, and you can drag it out. The pic I took of what it likes like after this didn't come out, but scroll down to the reassembly to see the packing you will encounter.
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Now to get rid of the other half. Take the end cap that we whacked out, and trace around it on the end of the body to get an idea of the size of hole we're cutting out.
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I tried several options on the first muffler I did, and nothing worked as good as this method. Plus, it's cheap. So, we first take our center punch and tap all along the line we drew so that it has a bunch of punch marks in it as a guide.
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Then we drill a hole big enough to get our chisel started. That's right, chisel!
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And hack away! Make sure you're using a nice, sharp, durable metal chisel and safety goggles. I tired a holesaw, a grinder, I tried drilling all the way around, and I tried the reciprocating saw, but they all were less than ideal. This metal is TOUGH, and the chisel surprisingly ripped right through it more accurately than I thought.
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The reason why we tapped all the way around was because it gives the chisel a sort of track to follow. The total process took only about 5-10 minutes each.
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Once you're done, the two tubes we cut out just fall right into your hands. We can ditch those now.
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And here we go. The hole is obviosuly not straight, but it makes no difference to me since: a) it'll be covered by the end cap, and b) it doesn't affect the operation or integrity of the muffler at all. So, you can grind yours down but in my opinion it's a waste of a bit.
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Then we can tap the perforated shell back into semi-original condition from when we hacked it open.
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And, now for the wrapping. Again, I put this back in because I like my neighbors. Just wrap it like you're wrapping electrical tape- nice and tight and even. But, be careful, this stuff is murder. Its little synthetic fibers embed in your clothing and skin, and itch and scratch like hell!
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Then you can slide your shell back on. If the packing is tight enough it should go on very easily.
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When it gets to the end, you'll need to tap it back down. Take the body and tap it hard on something soft, like a stack of newspapers. I used a tree stump, but this picture is just for illustrative purposes. You don't want to bash up the aluminum, so don't whack it too hard.
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Then you can take the end cap and tap it back into place. I used a rubber dead blow hammer. Make sure you get the cap right side up so it lines up with the holes in the side and top correctly.
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You can cut off the fibers sticking out the end with a sharp knife.
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And here we are. I haven't yet riveted the ends because I don't have a high quality riveter yet, but it's a simple step that I don't need to explain. The difference is clear- I can't wait to hear how it sounds!
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This page is in no way associated with Ducati.com, nor is it an entity of Ducati Motor Holding, S.p.A. All content, information, and views expressed herein are those of myself and do not reflect those of Ducati or its affiliates. The "DUCATI" logo and "Circle D" are registered trademarks of Ducati Motor Holding, S.p.A., all other content on this website is copyright 2006, Monster Man Productions.
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