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RACING MUFFLERS
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Back
pressure robs your car of power and economy. Reduced back
pressure will cause immediate gains in both power and
economy. If you modify your engine, for every 8-10% in power
increase you will gain 30% more back pressure which
virtually chokes the motor. So any modification at the
engine makes a free flowing exhaust and muffler system
mandatory.
There are three basic factors in noise control: Restriction,
Absorption, and Reflection.
Restriction is best for reduction of noise, but worst for
power and economy (as high as 16lbs of back pressure).
Absorption is effective when you pack materials such as
fiberglass inside casing, but this is usually quite loud,
especially when the packing burns out. Absorption doesn't
control reversion. Reflection which is the most effective
for power increase is done with baffles and reflector plates
with nothing to burn out.
MAC Flow Path mufflers use reflection for maximum flow while
still maintaining noise control. Instead of a single flow
path, MAC Flow Path mufflers use two flow paths for twice
the flow and reflection area, while remaining a true
anti-reversion muffler. This is what makes Flow Path
mufflers the Best Choice!
MAC Flow Path mufflers.
Power by design & Hand Crafted. |
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89
MUSTANG 5.0 LX - MAC Headers - MAC Cats
| Static |
Flow
Path™ |
DynoMax™* |
FlowMaster™* |
| 19"
Idle |
74db |
73db |
79db |
| 19"
2000 |
81db |
80db |
87db |
| 19"
4000 |
83db |
84db |
92db |
| Drive
by at 5000 R.P.M. 2nd gear at 50 ft. |
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73db |
74db |
86db |
Independent
Flow-Test Super Flow Test equipment.
Tested by Fred Simpson at Flow Technology.
Test at 25" of H20 - 71% humidity - 84o temp.
range 5 |
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