early 99 question - Ford Powerstroke Diesel Forum
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post #1 of 3 Old 02-16-2010, 05:04 AM Thread Starter
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early 99 question

Is there any horsepower gain if i swap just the plenums and y-pipe? Get rid of the restrictive 2 inch plenums. ?

2000 DRW CC 7.3
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post #2 of 3 Old 02-16-2010, 06:34 AM
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Not much... Not until you get a bigger turbo and injectors that need more air.

1999.5 Ford F-250 7.3l 4x4 PSD DI Short block, Ported Heads, Head studs, Over size valve springs, DI Push Rods, DI RR, GTP38R, GSL 392 fuel pump with 3/8 line feeding 238cc Injectors from Nate @ Unlimited Diesel and Live Tuned By Matt @ Gearhead Automotive

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post #3 of 3 Old 02-16-2010, 06:44 AM
What u talkin bout willis

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i personally believe that if you open it up and let it flow better, that the truck will run better.... but i dunno......i just ordered 3" upgraded plenums with swamps 66mm turbo and a hypermax mount kit

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