3.5 OR 4 INCH DOWNPIPE - PowerStrokeNation : Ford Powerstroke Diesel Forum


Home Today's Posts Mark Forums Read
Go Back   PowerStrokeNation : Ford Powerstroke Diesel Forum > Super Duty 1999-Current > 6.0L Power Stroke - Aftermarket & Performance
Register Members List Timeslips Calendar Auto Loans Sponsors Becoming a Sponsor Mark Forums Read Auto Escrow

PowerStrokeNation.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
Thread Tools Display Modes
  #1  
Old 06-23-2012, 01:57 AM
jaredb
Offline
PSN Local
Member's Gallery
 
Join Date: Jan 2010
Location: Buchanan
Posts: 84
3.5 OR 4 INCH DOWNPIPE

I have heard that the 4 inch downpipe doesnt clear everything on the truck. What are your guys experience with this? Thanks
Reply With Quote Go to the top
Sponsored Links
Advertisement
 
Sponsored Links
Advertisement
 
  #2  
Old 06-23-2012, 03:40 AM
Monster758's Avatar
Monster758
Offline
PSN Local
Member's Gallery
 
Join Date: Mar 2012
Location: Montana
Posts: 134
Re: 3.5 OR 4 INCH DOWNPIPE

Mine seems to be fine. I have no rubbing issues, was just a really damn tight fit! Only issue with mine is, it will rattle loose every now and then. But that is just a clamp problem.
__________________
2005 F-250 Custom 4" TB exhaust, AFE Stage II, High Idle Mod, CCV Mod, 6 Inch Fabtech, 35/16 wide Dick Cepek tires
Reply With Quote Go to the top
  #3  
Old 06-23-2012, 04:17 AM
windrunner408's Avatar
windrunner408
Offline
I Love Work'N On Hot Rods
Member's Gallery
 
Join Date: Jun 2011
Posts: 1,549
Re: 3.5 OR 4 INCH DOWNPIPE

My 4in down pipe doesnt rub on anything.
__________________
Nate
06 F350 4x4: Non-VGT 67mm Turbo, WPE Big Oil HPOP, HD 215/85s, Race Ported Intake, NB/Warren Tranny, and some other stuff.... 100k miles and counting....

06 F250 2wd: Stock... EGR delete, Race Ported Intake, and a mild street tune.... Leaking HGs

WINDRUNNER PERFORMANCE ENGINEERING (WPE)
Reply With Quote Go to the top
  #4  
Old 06-23-2012, 11:04 AM
04 f350's Avatar
04 f350
Offline
Good ol boy
Member's Gallery
 
Join Date: Feb 2012
Location: NC
Posts: 1,188
Re: 3.5 OR 4 INCH DOWNPIPE

I have a 3.5 in mine does a half an inch really make that much difference
__________________
Studded and Deleted
5 inch axle dump
Back Road Performance
Warrens 205/100s
Barder Stage 2
Air Dog 2
58v IDP Ficm tune
Reply With Quote Go to the top
  #5  
Old 06-23-2012, 02:47 PM
ghohouston's Avatar
ghohouston
Offline
whistle tits
Member's Gallery
 
Join Date: Mar 2011
Location: Lewisville, Texas
Posts: 2,478
Re: 3.5 OR 4 INCH DOWNPIPE

Quote:
Originally Posted by 04 f350 View Post
I have a 3.5 in mine does a half an inch really make that much difference
On my 7.3 I noticed slightly better throttle response, and huge difference in sound
__________________
[COLOR="DarkGreen"]"Shamoo"
1997 F350 CCLB 7.3 ZF5 4x4, 6637, straight pipe, Gearhead tuned, complete super duty e fuel setup for the haters who doubted me

they should start making cows with a DPF, EGR, catalytic converter and an oxygen sensor crammed up their a$$es
Reply With Quote Go to the top
  #6  
Old 06-23-2012, 03:23 PM
04 f350's Avatar
04 f350
Offline
Good ol boy
Member's Gallery
 
Join Date: Feb 2012
Location: NC
Posts: 1,188
Re: 3.5 OR 4 INCH DOWNPIPE

Well what bout on a 6.0
Reply With Quote Go to the top
  #7  
Old 06-23-2012, 06:36 PM
lenzhotrod
Offline
PSN Veteran
Member's Gallery
 
Join Date: Dec 2010
Posts: 1,855
Re: 3.5 OR 4 INCH DOWNPIPE

I run a 4" turbo back with no rubbing. And the volume is quite a bit. I see no downside to a larger pipe.
Reply With Quote Go to the top
  #8  
Old 06-23-2012, 10:54 PM
ghohouston's Avatar
ghohouston
Offline
whistle tits
Member's Gallery
 
Join Date: Mar 2011
Location: Lewisville, Texas
Posts: 2,478
Re: 3.5 OR 4 INCH DOWNPIPE

Quote:
Originally Posted by 04 f350 View Post
Well what bout on a 6.0
ive never driven a 6.0 before and after, its always been stock, or 4", im sure it would make some difference, sure it would sound better too
Reply With Quote Go to the top
  #9  
Old 06-24-2012, 03:01 AM
Tylus's Avatar
Tylus
Offline
PSN Local
Member's Gallery
 
Join Date: Aug 2011
Location: Pearl Harbor, HI
Posts: 182
Re: 3.5 OR 4 INCH DOWNPIPE

factory downpipe on a 6.0 is already 3.5"

but

it's a spot where it's crimped or crushed down to 3" or just a tiny bit less. I've got the MBRP 3.5" sitting in my garage. looking up under there you can see a huge difference. I too heard about the 4" fitment issues, so I figured 3.5" was plenty. I'm not after a huge high HP truck. just slightly lower EGT's
__________________
2002 Excursion XLT
35's and some other stuff
Reply With Quote Go to the top
  #10  
Old 06-24-2012, 03:30 PM
06-6.0 stoker's Avatar
06-6.0 stoker
Offline
PSN Veteran
Member's Gallery
 
Join Date: May 2011
Location: indianapolis in
Posts: 742
Re: 3.5 OR 4 INCH DOWNPIPE

Factory is 3 inch. I'm running a 3.5 inch fairly tight fit. Mine rattles since the day I put it in. There looks to be clearance everywhere but it rattles somewhere. Didn't notice any gain in throttle response or anything
__________________
2006 f250 4x4 6in lift 37x13.5 tires
A few engine parts here and there

Back Road Performance tuned
Reply With Quote Go to the top
Reply


(View-All Members who have read this thread : 205
'94IDITurbo7.3, 03_stroker, 04 f350, 04krpsd, 04_stroke, 05f250inmn, 05harley, 06-6.0 stoker, 06powerstroker1993, 08straightpiped, 08twinturbo, 19stroker97, 2005stroker, 2006.0FX4, 2006.1f250, 2006powerleaker, 250strokin, 47mxracer47, 6.9PoweredScout, 60POWERSTROKE73, 79jasper, 86F2506.9, 91forddiesel, 96strokerf250, 97-Powerstroke-37, Adam A., airfish2011, alalhunter, Backwoods Electric, bahenry87, Bajadave, baller9409, benjiblaze, Betaracer, bgraiders323, BIG"E", bigrngyj, BlAcKeNeD, BlueOvalDiesel, Boknows, Bolhausen, boosted88coupe, bretferd, bubbaed, cam1111, caveman1, ccf250, chad pickens, chadsstroker, charlez, chizetown, cjetcat, cking1209, cleanseventhree, Cool92, crd95psd, Csulli250, Cutty72, D HD, daddysstroke, Dane1985, Dawgfan52, DBQLSC, dc5!hella, Desertdweller, dieselnate6.0, Dieseltechjesse1, Dirt Floor Poor, dking963, dondoughty, Doolie, dp_stroker, Dr C, drunk on diesel, DrydenT, dturn64, Dustin F2504x4, El king-350, elevateloren, eyoung, F-25000, f250brah, Fabbed5.0, Falls250, FarmBoyStroker, FarmRig, FATHERFORD, fkjunkin, fpOwerstRokeD, FX4 F2-Fifty, geared_low550, ghohouston, gone6.0, granite state destroyer, Grey6.0, gtmustang00, HankyD, HaysKSFirefighter, HeavyAssault, Hicktownmotorsports, hotwheels31, huhner5, hzippere, Ian123, ibhurln, imthemedic, Jamesdean, jaredb, Jarhead97, jeichert, jerry k, joestroo, jp115, jsturki, justin99, justind, kbrown04, Kbryant777, KCMEADOWS, kickstand, KneeDragger79, ktmrydr686, lifted 250, Lupe.R, mantis118, MarkEB250, MColeman, Mike@MPD, miller45103, mkelly, Monster758, Mr.Wonderful, muddynoll, mudoc, MXRIDER777, Napadan, nelsonar, new2deisel, NH OIL BURNER, nickPSD, NiteOwl, nm351, North Pro diesel, OBS F350, OBSdan, OilBurner62, onefaststang, onestumper, pa-powerstroke, Plyndrty, power-smokn, PowerPerformanceChainsaw, powerstroke44241, POWERSTROKE_GOD, pro350hydro, pwrstrk6.0, Quackaddict, R-Bone, racersg, Rambo, randy046.0, RHCDIESEL, rollingthunder, sargepep56, scparrish, ServiceTech, shadow6.0, sho669, silent64, Six Liter, Skpph, slvr bullet, sm23, smokersteve, smokinford07, smokinstroker92, sno-x139, Sparky350, spb_2006, ste2, Stonepusher, Stroker, stroker57, Strokernoob, stroker_1999, strokin82, Stumppy, SuperSmoker318, survivalsquid, T SCHMIDT, thatboysf250, The Gray Mule, Thunderpimp, tinglef, Tyler R, Tylus, WBD628, webb06, what a mess, whitestroke55, Whstln, windrunner408, Woody35, ZC628
Thread Tools
Display Modes


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 08:36 AM.



Powered by vBulletin® Copyright ©2000 - 2014, vBulletin Solutions, Inc.