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'99 - '06 GM Truck Modifications
Engine & Performance
DIY Exhaust Thread-Dynomax Bullet
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<blockquote data-quote="01ssreda4" data-source="post: 5481" data-attributes="member: 477"><p>Here's a tidbit, always nice to find these under the truck during your initial inspection.</p><p></p><p><a href="http://s275.photobucket.com/user/01ssreda4/media/Yukon%20XL/IMG_20140308_105817_520_zpse3ddad63.jpg.html" target="_blank"><img src="http://i275.photobucket.com/albums/jj294/01ssreda4/Yukon%20XL/IMG_20140308_105817_520_zpse3ddad63.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p></p><p>First thing we have to do is get this pipe down to a manageable size and off the truck. There are </p><p>a few simple steps to make this happen. One, the hanger just to the rear of the muffler should</p><p>be cut off the pipe. We want to salvage it, so cut just up from the weld. You will still have</p><p>enough rod left to weld it to your new setup. Here's how you would cut it: Keep as much of the rod</p><p>as possible.</p><p></p><p><a href="http://s275.photobucket.com/user/01ssreda4/media/Yukon%20XL/IMG_20140308_110342_707_zpsf0e08a38.jpg.html" target="_blank"><img src="http://i275.photobucket.com/albums/jj294/01ssreda4/Yukon%20XL/IMG_20140308_110342_707_zpsf0e08a38.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p></p><p>Also, notice above our rear is cut. We need to make one cut with a sawzall just after the stock</p><p>Y merge. You need a single rear tailpipe connection so you'll cut as far up to the Y merge as possible.</p><p>Here is is cut. It will gape open because the weight and unbalance of the tailpipe will make it move</p><p>around. From there back there is only one hanger.</p><p></p><p><a href="http://s275.photobucket.com/user/01ssreda4/media/Yukon%20XL/IMG_20140308_110422_160_zpsf3a53b7f.jpg.html" target="_blank"><img src="http://i275.photobucket.com/albums/jj294/01ssreda4/Yukon%20XL/IMG_20140308_110422_160_zpsf3a53b7f.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p></p><p>The one hanger in front of the muffler needs to be pried off, then take care of your disconnects and</p><p>slide the whole assembly to the rear. When it gets on the ground, it should look like this:</p><p></p><p><a href="http://s275.photobucket.com/user/01ssreda4/media/Yukon%20XL/IMG_20140308_112209_126_zps14016f11.jpg.html" target="_blank"><img src="http://i275.photobucket.com/albums/jj294/01ssreda4/Yukon%20XL/IMG_20140308_112209_126_zps14016f11.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p></p><p></p><p>This is a general idea of what we are going to end up with. The Magnaflow Y pipe will pull us down to one outlet,</p><p>then we will go into our muffler then out to our stock tailpipe. Because the stock Y merge was actually on the</p><p>upward slant going over the rear end, we will need to get an upward bend after the muffler. So here they are in </p><p>comparison.</p><p></p><p><a href="http://s275.photobucket.com/user/01ssreda4/media/Yukon%20XL/IMG_20140308_112533_687_zpse19686bf.jpg.html" target="_blank"><img src="http://i275.photobucket.com/albums/jj294/01ssreda4/Yukon%20XL/IMG_20140308_112533_687_zpse19686bf.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p></p><p>------------------------------------------</p></blockquote><p></p>
[QUOTE="01ssreda4, post: 5481, member: 477"] Here's a tidbit, always nice to find these under the truck during your initial inspection. [URL=http://s275.photobucket.com/user/01ssreda4/media/Yukon%20XL/IMG_20140308_105817_520_zpse3ddad63.jpg.html][IMG]http://i275.photobucket.com/albums/jj294/01ssreda4/Yukon%20XL/IMG_20140308_105817_520_zpse3ddad63.jpg[/IMG][/URL] First thing we have to do is get this pipe down to a manageable size and off the truck. There are a few simple steps to make this happen. One, the hanger just to the rear of the muffler should be cut off the pipe. We want to salvage it, so cut just up from the weld. You will still have enough rod left to weld it to your new setup. Here's how you would cut it: Keep as much of the rod as possible. [URL=http://s275.photobucket.com/user/01ssreda4/media/Yukon%20XL/IMG_20140308_110342_707_zpsf0e08a38.jpg.html][IMG]http://i275.photobucket.com/albums/jj294/01ssreda4/Yukon%20XL/IMG_20140308_110342_707_zpsf0e08a38.jpg[/IMG][/URL] Also, notice above our rear is cut. We need to make one cut with a sawzall just after the stock Y merge. You need a single rear tailpipe connection so you'll cut as far up to the Y merge as possible. Here is is cut. It will gape open because the weight and unbalance of the tailpipe will make it move around. From there back there is only one hanger. [URL=http://s275.photobucket.com/user/01ssreda4/media/Yukon%20XL/IMG_20140308_110422_160_zpsf3a53b7f.jpg.html][IMG]http://i275.photobucket.com/albums/jj294/01ssreda4/Yukon%20XL/IMG_20140308_110422_160_zpsf3a53b7f.jpg[/IMG][/URL] The one hanger in front of the muffler needs to be pried off, then take care of your disconnects and slide the whole assembly to the rear. When it gets on the ground, it should look like this: [URL=http://s275.photobucket.com/user/01ssreda4/media/Yukon%20XL/IMG_20140308_112209_126_zps14016f11.jpg.html][IMG]http://i275.photobucket.com/albums/jj294/01ssreda4/Yukon%20XL/IMG_20140308_112209_126_zps14016f11.jpg[/IMG][/URL] This is a general idea of what we are going to end up with. The Magnaflow Y pipe will pull us down to one outlet, then we will go into our muffler then out to our stock tailpipe. Because the stock Y merge was actually on the upward slant going over the rear end, we will need to get an upward bend after the muffler. So here they are in comparison. [URL=http://s275.photobucket.com/user/01ssreda4/media/Yukon%20XL/IMG_20140308_112533_687_zpse19686bf.jpg.html][IMG]http://i275.photobucket.com/albums/jj294/01ssreda4/Yukon%20XL/IMG_20140308_112533_687_zpse19686bf.jpg[/IMG][/URL] ------------------------------------------ [/QUOTE]
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'99 - '06 GM Truck Modifications
Engine & Performance
DIY Exhaust Thread-Dynomax Bullet
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