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post #1 of 22 (permalink) Old 03-11-2012, 02:49 PM Thread Starter
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4.6 Exhaust System

OK my T-Bird project has reached the complete new exhaust stage. The engine will stay factory stock. It's a daily driver that gets taken on long trips. I want to have my cake and eat it too. I'd like it to sound like a V-8 but also want to be able to listen to the stereo while I'm doing those 8-10 hour days behind the wheel on trips.
I'm going with the manderel bent exhaust system reccomended on the forum. I'm goin to eliminate the 3rd cat, but keep the resonater. So, what pipe diameter? 2 1/4" or 2 1/2"? What about mufflers? Has anyone tried Flowmaster VT with the little valve that opens up under WOT?
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post #2 of 22 (permalink) Old 03-11-2012, 02:54 PM
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I will just put my 2 cents in here DynoMax SuperTurbos

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post #3 of 22 (permalink) Old 03-11-2012, 02:56 PM
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Dynomax makes the VT muffler, not flowmaster. I've heard them on a couple of cars so far and have no complaints. Not something that I personally would use since I like my cars loud all the time, however if your looking for wot sound and bearable highway tones I'd imagine your the perfect demographic for it. I've been considering a set of Warlock mufflers for my bird because I would like to keep them open all the time and throw in the plugs for times that I have to come home late, go to a friends HOA neighborhood at night, visit the in-laws etc... I think those would be a good option for me. Most of my friends say they can hear my car before they see it. Or if I pull into a drive way typically they open the front door as I'm walking up because they "heard me coming".

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Last edited by Chris_Murder; 03-11-2012 at 03:09 PM.
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post #4 of 22 (permalink) Old 03-11-2012, 03:09 PM
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Hasn't this thread been discussed in multitudes of other threads? AAMOF, the thread right after this is similar: http://forums.tccoa.com/showthread.php?t=138154

I'm just saying, look around and you can find some threads with different options, youtube has different installations you can hear, etc.

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post #5 of 22 (permalink) Old 03-11-2012, 03:11 PM
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Quote:
Originally Posted by NetKeym View Post
Hasn't this thread been discussed in multitudes of other threads? AAMOF, the thread right after this is similar: http://forums.tccoa.com/showthread.php?t=138154

I'm just saying, look around and you can find some threads with different options, youtube has different installations you can hear, etc.
Nah, there's no such thing , no one ever asks about mufflers.

-1996 Pearl White Thunderbird 4.6 Sport 4v with many mods:
Current Best: 13.583 @ 103.74 10/2014.
227hp/241tq measured on calibrated mustang dyno, tested at full vehicle simulation with inertia enabled, no number skewing.
-2001 White Ford F-250 Super Duty 6.8 V10, 4-door, 4x4, Limo Tint, BFG KO2's, Bilstein 7100 Remote Reservoir Race Bypass Shocks, 6" Spring lift, Kenwood Double Din, K&N Intake, FlowMaster Exhaust
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-2005 White GMC Sierra 3500 6.6 Duramax, Dually, 4-door, 4x4, Limo Tint, BFG Commercial T/A's, Rancho RS9000XL Shocks, Kenwood Double Din, K&N Intake, Banks Monster Exhaust
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post #6 of 22 (permalink) Old 03-11-2012, 03:28 PM Thread Starter
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Quote:
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Hasn't this thread been discussed in multitudes of other threads? AAMOF, the thread right after this is similar: http://forums.tccoa.com/showthread.php?t=138154

I'm just saying, look around and you can find some threads with different options, youtube has different installations you can hear, etc.
Doesn't cover what I'm asking about.
Now what about pipe diameters?
Has anyone had clearance problems with 2 1/2" duals?
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post #7 of 22 (permalink) Old 03-11-2012, 03:41 PM
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Originally Posted by ThunderbirdLX View Post
Doesn't cover what I'm asking about.
Now what about pipe diameters?
Has anyone had clearance problems with 2 1/2" duals?
You're not serious (sorry, but you obviously didn't look at the thread you posted this new thread in). Almost everybody here runs the 2 1/2" duals from Mandrel Systems - some with the x-internal muffler up front.

Here is some good info for you (both stickied at the top of the Exhaust thread):
http://forums.tccoa.com/showthread.php?t=136518
http://forums.tccoa.com/showthread.php?t=118883

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post #8 of 22 (permalink) Old 03-11-2012, 05:44 PM
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As for the pipe size, someone posted the sizes for different horsepower ratings and I can't find it or remember who it was. I was wondering the same thing, what would be better for a stock engine, 2.25" or 2.5". Can anyone help out?

Mike
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post #9 of 22 (permalink) Old 03-11-2012, 06:00 PM
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2.25 or 2.5, won't matter on a stocker imo. They will both work just fine. The 2.5 does allow for some better flow when you add mods. Something to keep in mind so you don't have to spend the same money twice.

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post #10 of 22 (permalink) Old 03-11-2012, 06:45 PM
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Quote:
Originally Posted by mh68 View Post
As for the pipe size, someone posted the sizes for different horsepower ratings and I can't find it or remember who it was. I was wondering the same thing, what would be better for a stock engine, 2.25" or 2.5". Can anyone help out?

Mike
I have a couple of those, here you go:


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post #11 of 22 (permalink) Old 03-11-2012, 06:54 PM
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Yep, that's what I was looking for. So basically, a stock to mildly modded 4.6 can go either 2.25" or 2.5". Would there be a noticable difference between the two? In other words, you're not going to feel a "loss" in power on a stocker going with 2.5"?

Mike
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post #12 of 22 (permalink) Old 03-11-2012, 07:32 PM
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post #13 of 22 (permalink) Old 03-11-2012, 07:35 PM
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Quote:
Originally Posted by mh68 View Post
Yep, that's what I was looking for. So basically, a stock to mildly modded 4.6 can go either 2.25" or 2.5". Would there be a noticable difference between the two? In other words, you're not going to feel a "loss" in power on a stocker going with 2.5"?

Mike
Doubtful. As a matter of fact, you should feel an improvement!

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post #14 of 22 (permalink) Old 03-11-2012, 07:58 PM
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i got 2.5 true duals on mine and love em.. got thrush welded turbo mufflers out back.. sounds really good..

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post #15 of 22 (permalink) Old 03-11-2012, 08:25 PM
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Ive got 2.5" true duals on mine with flowmaster 44s no cats, just mufflers and pipe. The way it should be. Mines also a 5.0 so I have a different sound

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post #16 of 22 (permalink) Old 03-11-2012, 08:28 PM
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Is there any leaks between the manifolds and pipes due to pipe sizing?

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post #17 of 22 (permalink) Old 03-11-2012, 09:11 PM
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Me? No why would there be?

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post #18 of 22 (permalink) Old 03-11-2012, 09:34 PM
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I wasn't sure due to the fact that the manifolds aren't 2.5 inch diameter, but I had myself confused when I posted that.

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post #19 of 22 (permalink) Old 03-12-2012, 03:41 PM Thread Starter
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Thanks everyone. From the number of replys that were running 2.5" systems I think I can assume there will be no problems with clearance.
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post #20 of 22 (permalink) Old 03-12-2012, 06:33 PM
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post #21 of 22 (permalink) Old 03-12-2012, 06:55 PM
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Rick I'm stealing your illustrations
Not a problem! Meant to be enjoyed by all!!!

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post #22 of 22 (permalink) Old 03-12-2012, 06:59 PM
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Not a problem! Meant to be enjoyed by all!!!
Rick you've been a big help to the forums. Every post I see of yours, you're helping someone out or posting awesome diagrams. Thanks again!

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