4 and 5" TB Exhaust!?!?! - Ford Powerstroke Diesel Forum

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post #1 of 13 Old 07-06-2009, 06:11 PM Thread Starter
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4 and 5" TB Exhaust!?!?!

alright so when i bought by truck it already had a 5" straight piped exhaust on it. Now i love how loud my truck is and the massive look of the 5", but is it hurting me by having that much exhaust? I see everybody else running 4".. and i've heard people say that you get no gain from 5" unless pushin massive HP, but is it taking away any from the turbo and/or making it work harder by maybe having too less or too much back pressure?? how much backpressure does a stock turbo need in order to breath like its suppose to or better??



2000 F350, 10"s 38's, 4.56 gears/lockers, Dynatrac high steer w/free spin hub kit, 5" strait piped, DIY intake, 38R,Swamps 250cc, H-11 Studs, 910 Springs, Smith Brothers Pushrods, Adrenaline,Sinister Diesel Fuel System, CCV Mod, non ebv Ped. with high-flow outlet, Bellowd up-pipes, Built tranny, Gearhead Tunes.
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post #2 of 13 Old 07-06-2009, 06:18 PM
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from what I have read the only think difference from 4 inch to 5 inch is sound and looks.

Im thinking of going with straight 5 inch, but not sure how that will look with me only having 33s
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post #3 of 13 Old 07-06-2009, 06:39 PM Thread Starter
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well i'm runnin 38's and its still looks pretty decent, more or less just proportional. But i can tell the difference for sure if i'm parked next to another truck with 4". so it should look nice and big behind 33's...



2000 F350, 10"s 38's, 4.56 gears/lockers, Dynatrac high steer w/free spin hub kit, 5" strait piped, DIY intake, 38R,Swamps 250cc, H-11 Studs, 910 Springs, Smith Brothers Pushrods, Adrenaline,Sinister Diesel Fuel System, CCV Mod, non ebv Ped. with high-flow outlet, Bellowd up-pipes, Built tranny, Gearhead Tunes.
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post #4 of 13 Old 07-06-2009, 06:43 PM
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maybe someday ill be up as high as you lol......
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post #5 of 13 Old 07-06-2009, 06:55 PM Thread Starter
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yeah well fuel milage sux, especially since i'm running 5.13 gears, but then again i wasnt goin for fuel milage with this truck.. and IMO diggin down deep in a mud whole, or flying by a little ricer and all he can hear coming is the roar of the tires and the exhaust + tires Going bye-bye is wayyyy worth the loss of a little milage. I'm from Georgia so lifted trucks are a way of life to me.. and look at it this way.. You gotta start somewhere!? and last i checked 33's are bigger than stock.. so IMO your on the right path to sucess!!



2000 F350, 10"s 38's, 4.56 gears/lockers, Dynatrac high steer w/free spin hub kit, 5" strait piped, DIY intake, 38R,Swamps 250cc, H-11 Studs, 910 Springs, Smith Brothers Pushrods, Adrenaline,Sinister Diesel Fuel System, CCV Mod, non ebv Ped. with high-flow outlet, Bellowd up-pipes, Built tranny, Gearhead Tunes.
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post #6 of 13 Old 07-06-2009, 06:58 PM
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post #7 of 13 Old 07-06-2009, 07:02 PM
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yeah i love my 5 inches of straight pure love. just installed it today.

2000 Ext. Cab F-250 Lariat(TOTALED)

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post #8 of 13 Old 07-06-2009, 07:12 PM Thread Starter
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JOSHK!! here is what it looks like behind my tires.. pic does no justice, the exhaust does look bigger in person...

[IMG][/IMG]




2000 F350, 10"s 38's, 4.56 gears/lockers, Dynatrac high steer w/free spin hub kit, 5" strait piped, DIY intake, 38R,Swamps 250cc, H-11 Studs, 910 Springs, Smith Brothers Pushrods, Adrenaline,Sinister Diesel Fuel System, CCV Mod, non ebv Ped. with high-flow outlet, Bellowd up-pipes, Built tranny, Gearhead Tunes.
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post #9 of 13 Old 07-06-2009, 07:38 PM
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that looks sweet.I would stick with what you have.Is it a 6in tip then?

04 f250 egr delete,IDP 58v Ficm tuned,banks intercooler and piping,TSD SPD tunes,gogo DD solenoid,ITP RR kit, Fass 95g lift pump,Powermax turbo,ARP studded,08 pan and filter,6in and 35's on 20x12's with procomp traction bars
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post #10 of 13 Old 07-06-2009, 07:41 PM Thread Starter
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nah its all 5inch.. i was thinkin about maybe a 6 inch tip.. but i like her the way she is for now..



2000 F350, 10"s 38's, 4.56 gears/lockers, Dynatrac high steer w/free spin hub kit, 5" strait piped, DIY intake, 38R,Swamps 250cc, H-11 Studs, 910 Springs, Smith Brothers Pushrods, Adrenaline,Sinister Diesel Fuel System, CCV Mod, non ebv Ped. with high-flow outlet, Bellowd up-pipes, Built tranny, Gearhead Tunes.
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