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Old 12-21-2012, 12:05 PM   eBay Motors  #1 (permalink)
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Diamond Eye Downpipe Problem

Noticed today that my downpipe is cracked where the mouting bracket bolts to the passenger side exhaust manifold. Anyone else experienced this and if so would you go with another DE or a different one?
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Old 12-21-2012, 12:48 PM   eBay Motors  #2 (permalink)
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Nope. I'd just weld the bracket and call it good.
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Old 12-21-2012, 01:15 PM   eBay Motors  #3 (permalink)
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Should of been more clear. When I say cracked it is completely pushed into the dp. My personal opinion something that's only a year or more old and cost 200 bucks shouldn't do that.
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Old 12-21-2012, 01:18 PM   eBay Motors  #4 (permalink)
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Agreed. It shouldn't, but if it can be fixed pretty easily and very cheaply, why spend another $200? Unless it's a SERIOUS dent, it shouldn't really affect performance at all.
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Old 12-21-2012, 02:00 PM   eBay Motors  #5 (permalink)
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i had the same thing happen to mine there is no way for it to flex (only stong as the weakest link) something had to give i just removed the pipe and welded to hole shut removing to bracket it has been like that for a year now no problems
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Old 12-21-2012, 04:25 PM   eBay Motors  #6 (permalink)
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Has this been a common issue with the DE DP?


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Old 12-21-2012, 05:02 PM   eBay Motors  #7 (permalink)
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mine cracked at the sama place. i called them it was less than a year old they sent me a new one free of charge. the new ones don't have that gracket.
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Old 12-26-2012, 12:11 PM   eBay Motors  #8 (permalink)
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Just wanted to give you guys an update. Called Diamond Eye last Friday and left a message with customer service. They called me back today and stated they had a known problem. Pretty much a design flaw on GM's part. According to the tech I talked with the stock down pipes will do it eventually also. The tab as said in one of the previous posts does not enable the pipe to flex independently from the engine. DE has corrected the problem by removing that tab and will send you a new one if you call with the problem. No matter if you are out of warranty or not. Great customer service. It's nice to have a company that will stand behind their products.


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2006 LBZ CCSB LT3 Pkg, 6" Fabtech Lift, 35x13.50 Dick Cepek Fun Country II on 18's, EFI Live by Rob, Diamond Eye DP, Straight Piped 4" MBRP Turbo Back Exhaust w/ 5" tip, Transgo Jr., EGR Blocked
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Old 01-09-2013, 10:14 AM   eBay Motors  #9 (permalink)
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Would you mind posting a pic of the new pipe and maybe the old one go make sure when I get mine it is the newest version.
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Old 01-09-2013, 10:43 AM   eBay Motors  #10 (permalink)
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the new 1 is just not going to have the tab on the lower part of the pipe
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08 GMC 2500HD LMM
ATP autocal EFI live/ Edge cts/ SDP EGR delete/ pcv reroute/ Trans go jr/ allison deep pan/ MBRP down pipe /5" MBRP turbo back exhaust /AirDog 2 165 /AirAid intake / all soft trans coolent lines/ on 35's....
(have but not installed) PPE Race valve




03 GMC 2500HD LB7
Edge Juice/Attitude /AirAid intake /Straight pipe /6" procomp lift /35" BFG M/T
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