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  #1  
Old 09-09-2008, 03:05 AM
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Question Spartan Downpipe-Back Exhaust

So I ordered my tuner from Matt yesterday and also ordered their 4" downpipe-back exhaust....any words of advice on the removal of my stock system and the installation of the new exhaust? Should I remove my stock tailpipe/muffler assembly from the dpf, then remove the dpf/doc in one piece? Has anyone done a single piece exhaust install? Any advice would be appreciated...just wondering how I should route the new pipe under the truck?? Tailpipe up and over the rear axle from the front or the rear???....etc etc....Thanks!

Craig
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Old 09-09-2008, 04:31 AM
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Craig, if you search there are probably 20 threads from about 4 months ago on how to remove and replace all the exhaust. Some people posted some nice step by step instructions.
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Old 09-09-2008, 05:10 AM
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Thanks for the guidance....based on the threads I have found think I have the removal pretty well figured out. My biggest question was about the install of the single-piece exhaust. That is going to be one long piece of 4" steel, just wanted to know what would be the best way to go about doing the install. Please let me know, the man in the brown truck should be delivering all Thursday!
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Old 09-09-2008, 05:25 AM
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You're going to love the different truck you are about to create
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Old 09-09-2008, 05:28 AM
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I wrote this in Spartans forum.

Quote:
Originally Posted by Pahrump View Post
First let it cool down....its phucking HOT!!

Next I recommend un plugging the sensors, not taking them out yet, unplug them first, then get a good 13mm wrench and take the sensors out if you desire...I sort of recommend this cause the DPF is heavy, and I have seen folks bend the senors then they let the DPF down.

Now that the sensors are ouf of the way, use a 15mm to take the nuts off the pressed in bolts. Use a 15mm to loosen the clam on the filter back exhaust. Leave 3-4 of the nuts on that connect the DPF To the cat. Then take a ratchet strap and wrap it around the filter back exhaust and to something like maybe the axle....get this tight to pull the exhaust out of the DPF. Or a big block of wood and some pounding will work.

Take the other nuts off the DPF and set it on the ground. You will probably need to remove the 3 13mm nuts that are on the outside of the frame rail that hold the stock hanger on...remove the DPF and hanger in one piece.

If you are also replacing the cat at this time, Unplug the sensor, and go ahead and remove it with the 13mm line wrench, the stock bolts at the ball flange are 13mm, take those out now too. Then theres also a hanger on the cat, again remove the nuts on the outside of the frame rail I think theres 2 on this one.

Now remove the CAT and the hanger together.

Next just install your delete pipe, then install the sensors and plug them in.

Make sure you have all 3 probes installed and plugged in as well as the small vaccume line thats towards the front of the DPF....make sure this is all installed and plugged in BEFORE you start the truck...do NOT start the truck with the sensors unplugged!!!

Have fun!
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  #6  
Old 09-09-2008, 07:02 AM
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Thanks guys!.....I can't wait to get my shipment and get it installed.

Craig
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