Another Exhaust Question - Mustang Evolution

Go Back   Mustang Evolution > 4 Cylinder | V6 | Classic Mustangs || Tech and Talk > Pre-2005 V6 Mustang

Join Mustang Evolution Today

Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 08-01-2003, 09:36 AM   #1
Registered User
Join Date: Aug 2003
Posts: 5
Another Exhaust Question

I know there are plenty of Exhaust questions on this forum, but I haven't found an answer to my question. I am going to put a Flowmaster Force II CAT-Back system on my car. What I haven't decided on yet is if I should use the recommend kit for the 3.8L which as a reverse 'Y' pipe bolt-on or get the GT kit and make a custom 'H' pipe so it is a true dual pipe. Skill wise I am fine either way, what I am concerned about is if I make an 'H' pipe, will I loose all my back presssure and therefore loose my low end torque? The recommend kit uses 2.25" pipe and the GT kit uses 2.5" pipe.


'03 Mustang Coupe, Auto, K&N Air Filter, MACH 460 Stereo, JL Audio 10W0 Sub, JL Audio e1200 Amp, 35% Tint
TriStateStang is offline   Reply With Quote
Old 08-01-2003, 11:22 AM   #2
Legacy Member
Join Date: May 2003
Posts: 1,895
Send a message via AIM to Rellik Send a message via Yahoo to Rellik
Use 2.25 piping and you will regain most back pressure.

You can get the Y pipe adapter kit. But those kits are not true duals. They come with minimal gains. Like +1-3 hp.

True duals such as 2 straight pipes, or an H pipe will loose a 'little' backpressure but not much if you stay with 2.25 piping. You may not even notice it.
Also with true duals. You will see higher gains as you start modding your car since they exhaust will flow better.

Rellik is offline   Reply With Quote
Old 08-01-2003, 01:18 PM   #3
Registered Member
Join Date: Jul 2003
Posts: 151
Send a message via AIM to el cheapo
what he said
damn it school, why do you suck so bad??
el cheapo is offline   Reply With Quote
Old 08-01-2003, 02:59 PM   #4
Moderator Emeritus
SpectorV's Avatar
Join Date: May 2003
Region: Alabama
Posts: 26,049
Send a message via AIM to SpectorV
all stock gt and v6 exhaust pipe is 2.25 inches in diameter. run that and you wont have a problem if you go true dual.
2003 Cobra Vert (Redfire) #3938 of 5082 @ 05/27/2003
472rwhp/493rwtq -Modification List - Dyno Sheet
2012 Mustang 3.7L M6 (Kona Blue)
2011 Ford Edge Sport (Red Metallic)
SpectorV is offline   Reply With Quote

Lower Navigation
Go Back   Mustang Evolution > 4 Cylinder | V6 | Classic Mustangs || Tech and Talk > Pre-2005 V6 Mustang


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are On
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Question on exhaust jdl0812 General Mustang Discussion 25 04-01-2010 10:25 AM
exhaust question? roach 1996-2004 Mustang GT 3 12-21-2006 01:18 AM
new here and got an exhaust question ~Lesly~ Pre-2005 V6 Mustang 18 06-17-2006 12:16 PM
Exhaust Question The Arson Pre-2005 V6 Mustang 1 09-12-2004 08:57 PM
exhaust question(s) mexor Pre-2005 V6 Mustang 8 08-01-2003 03:01 PM

» Like Us On Facebook

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2012 Social Knowledge, LLC All Rights Reserved.

06:25 AM

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0 is in no way associated with or endorsed by Ford Motor Company.