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The 2010 Sin · 05-14-2010, 12:59 AM

the fluttering sound in flowmasters is the harmonics of the motor and the two chamber flowmasters. mine does the same thing.. I call it the sweet spot! :-) remember the 4.6 mustangs with the two chamber flows had that sweet spot too!!!! :-)

05-14-2010, 12:59 AM	#6
The 2010 Sin Dont H8 Me Cuz U Aint Me Drives: 2016 SS Sedan, 2017 Explorer Sport Join Date: Feb 2010 Location: Tulsa, Oklahoma Posts: 2,910	the fluttering sound in flowmasters is the harmonics of the motor and the two chamber flowmasters. mine does the same thing.. I call it the sweet spot! :-) remember the 4.6 mustangs with the two chamber flows had that sweet spot too!!!! :-) __________________