It’s not about sound...it’s about scavenging efficiency and performance. The Flow masters use a multi-baffle re-direct flow system that reduces flow and scavenging efficiency for the sake of sound. The MagnaFlows are a straight through design that maximizes exhaust flow and scavenging efficiency, with somewhat quieter sound.
Muffler Construction
The primary difference between Magnaflow and Flowmaster is the construction and the sound-canceling technology they use.
Magnaflow mufflers have a straight-through design and are filled with stainless steel acoustical packing material around a perforated pipe.
Flowmaster mufflers have a chamber-style design and use no acoustical packing material. Instead, they use metal plates, called baffles, to separate the sound waves. After the sound waves are redirected they collide and cancel each other out.
Magnaflow vs. Flowmaster
View attachment 1715413393 View attachment 1715413394
Scavenging Effect
The perforated stainless steel core in a Magnaflow muffler has no flow restrictions compared to Flowmasters chambered mufflers. This means your exhaust gases will flow right through the muffler at their normal speed.
Fast moving exhaust gases equals more horsepower for you.
