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Chevy/GMC Duramax 04.5-05 LLY Discussion of Chevy and GMC Trucks with LLY Duramax Turbo Diesel Engines

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Is paying the extra money for 5" exhaust over 4" worth it?... JOIN NOW TO REMOVE TRACER

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  #1  
Old 12-02-2012, 01:53 PM
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Question Why are some lb7's harder to prime than others

Is paying the extra money for 5" exhaust over 4" worth it?
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  #2  
Old 12-02-2012, 02:16 PM
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5" is a pain in the neck to fit and rather big.. but hey if you want a deeper louder truck the fives the way to go but the 4" will be easier to work on.

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Old 12-02-2012, 02:23 PM
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Do you have to have a 4" down pipe on duramaxs?
Is a full 4" system sufficient with high hp?
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Old 12-02-2012, 02:33 PM
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yes with 3" your egts more then likely be high if your going high hp.. you probably have to find a 4" downpipe and custom bracket it yourself though. Xtreme Diesel Peformance should have one. If not try Pinnicle Performance Exhaust.
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Old 12-02-2012, 07:51 PM
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You could try matching title to content of thread

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Old 12-02-2012, 07:54 PM
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and that too
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  #7  
Old 12-02-2012, 09:04 PM
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Originally Posted by tiremann9669 View Post
You could try matching title to content of thread
Exactly,

what's up with that!

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