Exhaust ???
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Joined: Sep 2010
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Exhaust ???
I am getting new exhaust in about a week and have a few ???s
I have been researching for a couple of months & have narrowed it down to 2 exhausts (I think). Not a whole lot of feedback on this for our V-10's.
Both Flowmaster cat back. Either the 50 or 70 series. I am just not sure which will sound better/louder. I dont want it real loud, but do want to know its there when I hit the skinny peddle. Hopefully as little drone as possible.
Typically how much louder is the 50 series compared to the 70BB?
All input is appreciated.
I have been researching for a couple of months & have narrowed it down to 2 exhausts (I think). Not a whole lot of feedback on this for our V-10's.
Both Flowmaster cat back. Either the 50 or 70 series. I am just not sure which will sound better/louder. I dont want it real loud, but do want to know its there when I hit the skinny peddle. Hopefully as little drone as possible.
Typically how much louder is the 50 series compared to the 70BB?
All input is appreciated.
Last edited by ddbck; Apr 29, 2012 at 05:37 PM. Reason: add
Senior User
Joined: Jun 2010
Posts: 468
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From: Canyon Country, Ca
I have been researching the same on here. Most who have bought the flowmaster cat back system have the 70 series that come with the kit. The ones who have the 50 series love them and enjoy the loudness of it compaired to the 70. The ones who have the 70 like theirs because its not droney but just a bit louder than stock. So it really is going to come down to your personal choice. 50 louder with some drone. 70 louder than stock with minimal to no drone. (depends on what you think is a comfortable level of drone. I think that I am going to go with 70 series.
Just remember this is a V10. No way will it sound like a rumbly V8. The exhaust mods (cat back) really has no notable performance nor gas improvment. Its only for sound and to say you have it.
Just remember this is a V10. No way will it sound like a rumbly V8. The exhaust mods (cat back) really has no notable performance nor gas improvment. Its only for sound and to say you have it.
Elder User
Joined: Oct 2011
Posts: 602
Likes: 0
From: Tacoma, WA
I love the sound of my Flowmaster 50 SUV.. But after getting used to it, it almost has me now wanting more.. I have heard some 2 valves with flowmaster 40s and it sounded great, but not sure how the 3 valve would sound?? I dont get a lot of cab noise, but then again I have a regular cab so the muffler is about 3 feet behind the cab..
I have had friends ride in the truck and they were actually shocked that a v10 with aftermarket exhaust was so quiet..
I have had friends ride in the truck and they were actually shocked that a v10 with aftermarket exhaust was so quiet..
Posting Guru
Joined: Apr 2007
Posts: 2,402
Likes: 3
I have the Flowmaster 817446 and I believe it is a 70 series muffler, and I love it. The Flowmaster system I had before this one was aluminized steel and it rotted away, it was also a single in dual out application and does have more drone than the single system. The 817446 is a little more louder than stock which is nice and has a nice rumble when you get on it.
Moderator
Joined: Aug 2002
Posts: 6,094
Likes: 379
From: Southern California
I am getting new exhaust in about a week and have a few ???s
I have been researching for a couple of months & have narrowed it down to 2 exhausts (I think). Not a whole lot of feedback on this for our V-10's.
Both Flowmaster cat back. Either the 50 or 70 series. I am just not sure which will sound better/louder. I dont want it real loud, but do want to know its there when I hit the skinny peddle. Hopefully as little drone as possible.
Typically how much louder is the 50 series compared to the 70BB?
All input is appreciated.
I have been researching for a couple of months & have narrowed it down to 2 exhausts (I think). Not a whole lot of feedback on this for our V-10's.
Both Flowmaster cat back. Either the 50 or 70 series. I am just not sure which will sound better/louder. I dont want it real loud, but do want to know its there when I hit the skinny peddle. Hopefully as little drone as possible.
Typically how much louder is the 50 series compared to the 70BB?
All input is appreciated.
The Mufflers
MAKE MODEL Part No. COST
SUMMIT Turbo 630125
THRUSH Magnum Glasspack 24214
THRUSH Boss Turbo 17718
HOOKER Competition 21006
DYNOMAX Super Turbo 17733
DYNOMAX Race Magnum 24215
HOOKER Super Competition 21106
SUMMIT Fully Welded 630325
FLOWTECH Afterburner 50322
MUFFLER FLOW TEST
MUFFLER Flow at 28-in H20
DynoMax Race Magnum 528.64 cfm
Thrush Magnum Glasspack 507.40 cfm
Summit Fully Welded 343.38 cfm
Flowtech Afterburner 342.20 cfm
DynoMax Super Turbo 333.94 cfm
Hooker Competition 232.46 cfm
Hooker Super Competition 320.96 cfm
Summit Turbo 331.16 cfm
Thrush Boss Turbo 297.36 cfm
MUFFLER Idle dB WOT dB
DynoMax Super Turbo 89 123
DynoMax Race Magnum 94 133
Flowtech Afterburner 92 124
Hooker Competion 92 122
Hooker Super Competion 90 125
Summit Turbo 89 124
Summit Fully Welded 92 125
Thrush Boss Turbo 90 123
Thrush Magnum Glasspack 92 128
Also Allied resonators (that sell for $20-$40) each and available at any muffler shop) installed in independent test flowed 90%+ of a "race spec muffler".
Cargo Master
Joined: Jun 2011
Posts: 2,272
Likes: 207
From: Cincy area
I have heard that you need to get the stainless kits. The aluminized steel rotts away quickly.
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Cargo Master
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Moderator
Joined: Aug 2002
Posts: 6,094
Likes: 379
From: Southern California
If you are comparing each of equal grade, you are right, but.....16 ga aluminized pipe will outlive low-grade (purity) 20 ga stainless.
Postmaster
Joined: Nov 2007
Posts: 2,557
Likes: 0
From: Bucks county PA
I'm currently debating on just getting a flowmaster muffler and leaving the stock piping in place for the time being. Figure, since I'm scoring the muffler cheap, I'll see how I like it and decide from there. Has anybody done this and care to share your opinions??
Hotshot
Joined: Mar 2007
Posts: 10,101
Likes: 40
From: Pa
I'm currently debating on just getting a flowmaster muffler and leaving the stock piping in place for the time being. Figure, since I'm scoring the muffler cheap, I'll see how I like it and decide from there. Has anybody done this and care to share your opinions??
Typically how much louder is the 50 series compared to the 70BB?
The 70BB2 can also be modded to add a little more sound if needed. I welded a plug over one of the chambers on mine to increase sound output. In thread below.
https://www.ford-trucks.com/forums/7...-fm70-mod.html