Exhaust Leak
Postmaster
Joined: Dec 2003
Posts: 4,196
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From: Arizona
Originally Posted by jimh425
If you do replace your cat, get an aftermarket one. It should be cheaper and more free flow. I couldn't believe the difference when I had one go out on a previous truck.
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Joined: Jun 2006
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Blackhat620-FYI I know for sure that there were resonators on some 2003 6.0 downpipes that were rapped in foil insulation. Check out thread-Horrible Turbo Whine after upgrade-from 4/27/04 started by Tractor Puller. I hope I did not offend you. Thanks.
Last edited by DDuty; Nov 11, 2007 at 08:25 PM.
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Joined: Nov 2007
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After the replies to my post I realize the leak I have is on the muffler side of the cat but I also do have a resonator wrapped in foil on the downpipe. I am not sure what the warranty is exactly, it may be 7/70 for the cat but I bet the dealer will find some loophole where this is not covered. I am looking at the Silverline 4" turbo back but I probably will have the cat weld repaired in the interim. I need to check if Connecticut tests diesels for emissions. If they do it would only be an OBD test, no tailpipe check, so I may be OK with a cat bypass.
Postmaster
Joined: Dec 2003
Posts: 4,196
Likes: 10
From: Arizona
Originally Posted by barrybruun
After the replies to my post I realize the leak I have is on the muffler side of the cat but I also do have a resonator wrapped in foil on the downpipe. I am not sure what the warranty is exactly, it may be 7/70 for the cat but I bet the dealer will find some loophole where this is not covered. I am looking at the Silverline 4" turbo back but I probably will have the cat weld repaired in the interim. I need to check if Connecticut tests diesels for emissions. If they do it would only be an OBD test, no tailpipe check, so I may be OK with a cat bypass.
Postmaster
Joined: Dec 2003
Posts: 4,196
Likes: 10
From: Arizona
Originally Posted by DDuty
Blackhat620-FYI I know for sure that there were resonators on some 2003 6.0 downpipes that were rapped in foil insulation. Check out thread-Horrible Turbo Whine after upgrade-from 4/27/04 started by Tractor Puller. I hope I did not offend you. Thanks.
http://www.ford-trucks.com/forums/23...r-upgrade.html
http://www.ford-trucks.com/forums/17...ight=Down+Pipe
http://www.ford-trucks.com/forums/24...ight=Down+Pipe
