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

new truck and new to diesel

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Old Mar 11, 2012 | 07:03 PM
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Default new truck and new to diesel

im buying an 04.5 lly that is all stock with 86,000 miles on it and im lookin to add some power and some goodies to it in the near future. what is the first things i should do to it. im new to diesels but been a big fan for a long time. Any help would be much appreciated
 
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Old Mar 11, 2012 | 07:06 PM
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how much money do you have for upgrades
 
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Old Mar 11, 2012 | 07:25 PM
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i got some money but i realy would like to do the work myself to get to know my truck a little better....i want to spend as little money as possible but make the most of it....but im not gonna skimp out of power
 
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Old Mar 11, 2012 | 07:32 PM
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to DB

i would get a better intake for the LLY. then go for the higher flowing exhaust and get EFI Live on it. that should satisfy you for a little while. i wouldn't put more then about 50~80 HP on it without upgrading the transmission first.
 
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Old Mar 11, 2012 | 08:47 PM
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i was planning on the intake but what do you guys recomend and efi live from what iv heard is realy expensive. where do i get it and how hard is it to install

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and in the future im thinkin a five inch exhaust with duel stacks but for now do you think i should cut off the cat or the muffler or both ?
 

Last edited by redbone21; Mar 11, 2012 at 08:47 PM. Reason: Automerged Doublepost
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Old Mar 12, 2012 | 08:25 AM
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EFI or PPE but make sure you have someone professionally do it or you could mess you truck up badly... but intake, exhaust, egr delete, and programmer/ tuner, should be the first things to do
 
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Old Mar 12, 2012 | 11:07 AM
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what kind of intake would you recommend and what does the egr delete do...sorry for all the questions
 
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Old Mar 12, 2012 | 12:20 PM
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this is what happens when you have an EGR. blocking it or removing it will allow only clean fresh air to enter the engine improving performance and efficiency. a PCV reroute would also be good
 
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Old Mar 12, 2012 | 02:25 PM
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Oh ok thats probably one of the first things ill get then.i want this truck to last awhile but i wanna have some fun with it to
 
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Old Mar 28, 2012 | 04:22 PM
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EFI really isnt that expensive. My LLY im building on now I went with a tuned ECM from Rob at ATP and It was less then $400 and thats with a DPS5 switch
 
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