![\"Old](\"http:\/\/mikestrawbridge.com\/blog\/wp-content\/uploads\/2011\/01\/snow-1-10-11-177.jpg\" "\\"Old")
<\/a>I ordered the Dynomax<\/a> system from Summit Racing<\/a> through their Ebay<\/a> store. It arrived in just a couple of days after I ordered. I had to laugh at the UPS man struggling with the huge box coming in my office door. <\/p>\n I began by lifting my Jeep and using a reciprocating saw to cut the muffler loose from the catalytic converter. There were a lot of old welds here so it was pretty messy. I cut the muffler to get room to work to clean it up.<\/p>\n The clamp at the rear hanger broke when I tried to unbolt it. I just twisted it out of the way. With both ends loose I was able to remove the muffler and tail pie as a unit from over the axle.<\/p>\n I used a variety of metal working tools to clean up the end of the cat. I cut off the bulk of the old pipes and weld beads with a torch. Then I used a 7 inch grinder to clean up the slag. I finished with my 4 \u00bd inch grinder fitted with a flap disk.<\/p>\n When I finished the reducer include in the kit slipped smoothly and snugly into place on the cat. There was a small hole in the pipe coming out of the cat so I elected to weld this joint closed rather than use the included clamp.<\/p>\n Next I slipped the muffler into place. I supported it on a stand while I fit up the tail pipe. It took some wiggling to get the tip to line up where I wanted it between the spring and the trailer hitch. When I finally got it in place I used a ratchet strap to hold it in position while I put a tack weld between the muffler and the tail pipe.<\/p>\n To get the rubber donut to connect properly with the hanger welded to the tail pipe, I removed the two bots that hold the hanger to the body. Then I slipped the donut over the hanger on the pipe and then I reattached the hanger using the bolts. This seemed easier than wrestling with the heavy rubber, which was cold and inflexible.<\/p>\n I then tightened the clamp on the rear hanger making sure the pipe was still positioned where I wanted it. I then installed the clamps at each end of the muffler. I rotated them so that the base of the clamp would face to the side. This gives maximum ground clearance and protects the ends of the bolts from damage.<\/p>\n With all the clamps in place, I removed the support and gave it a good shake to make sure it was positioned where I wanted it. I then lowed the Jeep and started the engine. I raised it back up and checked for leaks. Finding none, I was ready for a test drive. <\/p>\n<\/a><\/a><\/a><\/a><\/a><\/a><\/a><\/a><\/a><\/a>