I figure I should chime in since pretty much all brands of exhaust systems are being discussed.
I have sold quite a few of the Genius brand exhaust system without complaint. I use the Magnaflow muffler but to help further fight noise the tubing is a little smaller diameter than others and there is a resonator built into the tip. The system is louder than stock but doesn't resonate driving down the freeway and at certain RPM's. Plus, It adds enough horsepower for a nice seat of the pants increase.
Today
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