SOUND Difference - 50 Series Flowmaster to 18” Magnaflow?
SOUND Difference - 50 Series Flowmaster to 18” Magnaflow?
Has anyone heard the sound difference between a 50 series Flowmaster compared to an 18” Magnaflow on a 1997-2003 5.4 motor?
How do they compare,
At idle?
At acceleration?
At highway cruising speed?
Cab drone at certain RPM?
How do they compare,
At idle?
At acceleration?
At highway cruising speed?
Cab drone at certain RPM?


