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Discussion Starter #1
I have read several posts were people have installed O3 turbos as an upgrade, need someone to explain what the differance is. Thanks
 

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the main reason is for the insane whistle 03 turbos make:thumb:
 

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dont quote me on these numbers but i believe the 03 turbo is 10 vane the 04 turbo is 12 vane and the 05-07 turbo is 14 vane the more vanes the quieter the turbo whine is straight piped the 03 turbo sounds like a jet plane taking off almost lol :icon_ford:
 

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03 is 10 Blade, 04 is 12 blade, and 05+ is 15 blade. I put one on my 06 this weekend and yes the whistle is great, it has a tiny bit more lag off the line, but IMO pushes more ar quicker so when it hits it is alot quicker. I also build boost faster at a roll... Did I mention the whistle?? lol
 

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The early build dates of the 2004's came with the 03 Turbo. Check your build date, you may be lucky.
 

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I WANT ONE BADDDD, no money right now though :(
 

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I finally found one. I should have mine installed this weekend sometime!
 

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Ahhh, to have an 03 Turbo :D You'll be able to tell if you have a 03...Specially if you got it piped. jared, what is your build date?
 

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Look on the door inside door frame
 

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Whats the " latest" early 04 build date , or should i say what would ne the build dates to have a 03 turbo.
 

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I believe it was mid to late Oct. or Nov. Somebody with better knowledge should chime in.
 

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I believe it was November
 

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9/29/03 is what I was told and its my trucks build date. The 03 turbo is suppost to push about 50 more ponies than the 05+ turbo. And did anyone mention the whistle??? Lol jk
 

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what if you replace a 02 turbo on a 7.3l with a 03 turbo?
 
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