What can i do to the original muffler to sound more agresive? i was thinking to cut down here and remove some of the material inside... Did anyone made this mod? How those the inside look? Any info whould be helful Thanks
Here's what I did, done a couple sets of them for the 630s, 610 has the same internals I believe. The stainless muffler will slide out of the aluminum case with some tapping once you drill out the rivets on both ends. You may have to slide it out a bit, cut off the end cap, and then pull the rest out the front if the insulation between the stainless and the aluminum binds up. With the endcaps chopped off, you can replace the center core with some perforated tubing and wrap it in muffler packing, then rivet it all back together. I went one step further and opened up the endcap exits and welded in some short tubes to center the perforated tube. http://www.cafehusky.com/threads/my-take-on-converting-630-cans-to-flow-throughs.19706/
http://www.cafehusky.com/threads/de-catting-a-std-09-610.16972/ And this one I did is a bigger improvement over the first one -- hope you come right-- http://www.wilddog.za.net/forum/index.php?topic=109696.0
If you still have an O2 sensor, you haven't done the power-up, which is the FIRST thing you should do, even before gutting the exhaust. It eliminates the O2 sensor and replaces it with a brass plug and a resistor plug in the harness. You will use more fuel, but that is because the bike will be running richer, as it should be.
