3.5 or 4 downpipe - Ford Powerstroke Diesel Forum
Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
LinkBack Thread Tools Display Modes
Old 10-08-2007, 12:38 PM
Compression Ignition Addict

Join Date: Sep 2007
Location: DFW
Posts: 301
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
3.5 or 4 downpipe

looking at exhaust for my 01 f-350 7.3 auto. i have 118k miles and all is well. wanting to put exhaust on the truck, i have a hypertech power programmer running on stage 2. should i go with magnaflow with a 3.5 downpipe then to a 4 all the way back. or should i go 4 down and out. i hear the 3.5 gives more low end. any ideas. thanks
Reply With Quote Quick reply to this message
Sponsored Links
Old 10-08-2007, 12:44 PM

Join Date: Apr 2007
Location: Ponca City, Okla
Posts: 1,089
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Send a message via MSN to Blue01F250 Send a message via Yahoo to Blue01F250
4" -- will keep those EGT's down better -- and no one has any proof that it lowers your low end power. I would venture to bet its all in their head..
Reply With Quote Quick reply to this message
Old 10-08-2007, 03:01 PM
Powerstroke.org Sponsor


Join Date: Oct 2006
Location: Ventura County, CA
Posts: 20,356
Thanks: 23
Thanked 24 Times in 15 Posts
Feedback Score: 2 reviews
Send a message via AIM to Raul@Stealth Automotive
4" or 3.5" dont really matter unless your gonna be running huge power...... i would suggest MBRP TB exhaust... let me know if i can be of any service to ya

Reply With Quote Quick reply to this message
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Display Modes

Posting Rules
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -8. The time now is 02:01 PM.

Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.