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ok I have a guy who says he is running 750hp out of his duramax, which is possible (the guy seems shady though) but what kinds of mods does he need to make that. i know the tranny will need to be built but what else?
 

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OK I can tell you the stock turbo isn't gonna make it at 750 hp

The obvious has to be upgraded CAI and exhaust. and a EFILive tune or a PPE tune
and a turbo upgrade or a second turbo. Along with a lift pump.

To honest. I wouldn't even entertain a guy boasting about his truck's horsepower until he can prove it with a dyno print out. The commercial for Car Fax makes me think of it. "SHOW ME THE CAR FAX"

He says, My truck makes 750 hp. I say, "SHOW ME THE DYNO REPORT"
 

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I agree with Glenn. Hell I am not 100% sure what kind of HP I am making right now, therefore, I don't brag to people about what I THINK I am making.

Hey Glenn... Can he get that HP with a shot of nitrous, or would he still need a bigger turbo?
 

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Good question Jeff.
I'm really not sure. I can't say I have ever heard of a diesel w/ nitrous.
I seen propane boost. I would have to research that some.

I'm more into the poor mans performance mods LOL
I wish I was more involved in the heavily sponsored competitive performance mods.
 

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Oh there are guys runnin nitrous. Hell I saw a guy at the track runnin 3 stages on a 6.0.
 
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