Which series flowmaster?
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Senior User
Joined: Jun 2003
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From: Hawaii
Which series flowmaster?
I have a 4.6L in my truck and am looking to have a flowmaster installed but am not sure which series to buy. I want the performance and sound but don't want it too loud. Any suggestions?
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Joined: May 2003
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From: Enid, Ok
Which series flowmaster?
If you want an agressive sound outside but not to loud inside I recomend the Flowmaster 40 Series (Delta Flow) (single in dual out) with two pipes exiting out the back of your truck.
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Joined: Jul 2003
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Which series flowmaster?
I have the '03 supercrew that I had the flowmaster 40 with dual exhaust out the back and when setting in the rear seat at highway speed, there is a lot of roaring at times. Going to exchange the 40 for maybe a 50 or 60 series.
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Joined: Dec 1999
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From: Copley, OH
Which series flowmaster?
The 70 is very quiet untill you go to WOT. A little burbble at idle, a mild runble when accelerating normally, no drone or resonance at cruise. That's with a 300, with a 4.6 YMMV
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Senior User
Joined: Jun 2003
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From: Hawaii
Which series flowmaster?
Thanks guys, I think I'll go for the 50 series single in, two out with dual exiting behind the tires. Any idea as for the diameter of the dual pipes? Is it true that the lower the number the louder and higher the number the less noisy?
Last edited by CPerry; Aug 11, 2003 at 01:00 AM.
Senior User
Joined: May 2003
Posts: 218
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From: Enid, Ok
Which series flowmaster?
My step-father's f150 has a single 3" in dual 2.5" out. But his is the 40 series delta flow. I haven't noticed much resonance inside the cab like most people say (even in the back seat). The 40 series delta flow mufflers are designed to be agressive outside and mellow inside. You may be happy with the 50 series but those are just too quiet for me.
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New User
Joined: May 2003
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Which series flowmaster?
I have he 40 series in my 4.6, and i think it sounds best outside when cruising at about 1800-220 rpm on the highway.
-Chris
-Chris
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Which series flowmaster?