Replace stock muffler with Flowmaster?
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New User
Joined: May 2003
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Replace stock muffler with Flowmaster?
Just bought a 2006 F150 Supercrew. I want to install a cat-back exhaust system but I am curious if just replacing the stock muffler with a Flowmaster and not replacing the OEM pipes will give me similar results. All suggestions and input is appreciated. Thanks! Bill
2006 F-150 Supercrew (4.6)
1978 Ford Roll-a-Long Motorhome(460)
2006 Ranger(work truck)
1966 F-250(352)
2006 F-150 Supercrew (4.6)
1978 Ford Roll-a-Long Motorhome(460)
2006 Ranger(work truck)
1966 F-250(352)
Elder User
Joined: Jun 2006
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From: Fuquay Varina,NC
performance wise, probably not. You are not making the pipe size any larger, and using a chambered muffler wont gain you much more flow. It will sound much better, but probably wont do too much for power
Senior User
Joined: Oct 2006
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From: San Marcos, TX
Originally Posted by Bob Jusnes
performance wise, probably not. You are not making the pipe size any larger, and using a chambered muffler wont gain you much more flow. It will sound much better, but probably wont do too much for power
Elder User
Joined: Jun 2006
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From: Fuquay Varina,NC
Sounds like youre on the right track! The first system i used was a flowmaster, and when i ready for more power, i switched over to magnaflow, and never looked back
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From: NOR CAL
I don't like the magnaflow on the V6. I sounds like a beefed up weedeater. I have considered it for the power gains but I still want the sound. I give flowmaster a 10 on sound. My 4.2 has a nice deep sound. I did have improvement in power but mostly in mpg. It gave me another 2 mpg. Thats just my opinion though, it sounds good on the V8's but not loud enough compared to a flowmaster super 40. Wich I am sure flows just as good as the magnaflow. JUST MY OPINION.
Last edited by 1979FordF-250; Oct 10, 2006 at 09:57 PM.
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From: Angelica, NY
Originally Posted by 1979FordF-250
I don't like the magnaflow on the V6. I sounds like a beefed up weedeater. I have considered it for the power gains but I still want the sound. I give flowmaster a 10 on sound. My 4.2 has a nice deep sound. I did have improvement in power but mostly in mpg. It gave me another 2 mpg. Thats just my opinion though, it sounds good on the V8's but not loud enough compared to a flowmaster super 40. Wich I am sure flows just as good as the magnaflow. JUST MY OPINION.
Elder User
Joined: Jul 2005
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From: Milpitas, CA; Tyler, TX
Yeah, it'll mostly just be the sound that benefits (although I myself don't even like the sound of Dronemasters. Now, if you changed out the midpipe and all, you might get a little more benefit.
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I have heard flows 50 series and my magnaflow 18" side by side on the 4.6 and I like mine better. I like flows alot on other trucks, but so far I haven't heard anything better on the 4.6 and I am not completely happy with the magnaflow... I have it dumped over the axle...
