4" Down Pipe - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 13 (permalink) Old 02-09-2009, 02:49 PM Thread Starter
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4" Down Pipe

A friend of mine has a 1999 PSD and is wanting to know if going to 4" from the turbo back will cause any problems? Any help would be greatly appreciated!!


Ray
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post #2 of 13 (permalink) Old 02-09-2009, 02:52 PM
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Re: 4" Down Pipe

Nope, no problems. People do it all the time.

Curtis
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post #3 of 13 (permalink) Old 02-09-2009, 02:52 PM
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Re: 4" Down Pipe

No it won't.

Anthony

2002 F-350 SRW 4x4 Lariat Crew Cab, Auto, MBRP 4" T409 Turbo back, AFE Stage 2, Isspro gauges (Pyro, Boost, Trans), BTS VB, DP F-5
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post #4 of 13 (permalink) Old 02-09-2009, 02:54 PM
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Re: 4" Down Pipe

one of the best things i did for my truck was the 4" turbo back. EGT's will come down about 100 - 200 degrees at WOT

1999.5 F-250 7.3l 4x4 6 spd Ported Heads, Head studs, valve springs, DI Push Rods, DI RR, 38R, Walbro fuel pump, 238cc Injectors from Nate @ Unlimited Diesel and Tuned by Matt @ Gearhead Automotive


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post #5 of 13 (permalink) Old 02-09-2009, 05:29 PM Thread Starter
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Re: 4" Down Pipe

What does it help? Other than the EGTs.
Since he asked me to post this up i have gotten a lil curious about it


Ray
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post #6 of 13 (permalink) Old 02-09-2009, 05:31 PM
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Re: 4" Down Pipe

Mostly just EGT's but it sounds a lot better 2... but you have to do 4" all the way back or its pointless to do

1999.5 F-250 7.3l 4x4 6 spd Ported Heads, Head studs, valve springs, DI Push Rods, DI RR, 38R, Walbro fuel pump, 238cc Injectors from Nate @ Unlimited Diesel and Tuned by Matt @ Gearhead Automotive


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post #7 of 13 (permalink) Old 02-09-2009, 05:55 PM Thread Starter
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Re: 4" Down Pipe

I have stock down pipe into 4" to the bed and up thru the bed into 6" stax


Ray
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Late1999~F250 SuperDuty~Shortbed SCab~XLT~315 Hankook 10Rs~6" Mitre Cut Stacks~DIY Intake~DP Tuner~Transgo Tugger~Foil Delete~IssPro Gauges~
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post #8 of 13 (permalink) Old 02-09-2009, 06:05 PM
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Re: 4" Down Pipe

Quote:
Originally Posted by 1999SuperDutyStroke View Post
I have stock down pipe into 4" to the bed and up thru the bed into 6" stax
Get ya a 4" down pipe and it will sound a lot better trust me. I have been there and done that

1999.5 F-250 7.3l 4x4 6 spd Ported Heads, Head studs, valve springs, DI Push Rods, DI RR, 38R, Walbro fuel pump, 238cc Injectors from Nate @ Unlimited Diesel and Tuned by Matt @ Gearhead Automotive


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post #9 of 13 (permalink) Old 02-09-2009, 06:11 PM Thread Starter
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Re: 4" Down Pipe

My wife hates it when i open the back window and we are going down the interstate she says its "TOO LOUD"!!!!!
Where do i go looking for one, how much and how big of a PITA is it to change?


Ray
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Late1999~F250 SuperDuty~Shortbed SCab~XLT~315 Hankook 10Rs~6" Mitre Cut Stacks~DIY Intake~DP Tuner~Transgo Tugger~Foil Delete~IssPro Gauges~
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post #10 of 13 (permalink) Old 02-09-2009, 06:14 PM
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Re: 4" Down Pipe

Click Here

And its to to bad to change.

1999.5 F-250 7.3l 4x4 6 spd Ported Heads, Head studs, valve springs, DI Push Rods, DI RR, 38R, Walbro fuel pump, 238cc Injectors from Nate @ Unlimited Diesel and Tuned by Matt @ Gearhead Automotive


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