Can someone describe how to muffler mod an older 036 and maybe post some pics. This will be my first attempt at modding a saw and I'm not sure if I need to order a dual port muffler or if I can mod the original. I'm also not sure hoe to go about modding the original muffler. I would also like to be sure this is a saw that will benefit from a muffler mod. Thanks in advance for any info.