Review on Flowmaster Pro Series 13012100 Muffler - 3.00" In/3.00" Out, 12" Length by Jeff Gopala

I have a 4 cylinder turbo car and because it is a 4 cylinder I was afraid the sound would be too loud or too high pitched/metallic/hoarse. But it's not just the muffler BUT it's the type of engine you have and having 3 inches in the rear of the Cat worked really well. I heard my car being driven from 20 meters away and it's not loud at all. I took out the rusty resonator which explains the rumble in the car but other than that this muffler does a great job of stopping the high pitched tone you typically hear from a small 4 cylinder engine. However, as this is a 2.0-liter turbocharged car, the exhaust note is perfect, only a slightly loud, low-pitched rumble coming from behind as the revs increase. Great job Flowmaster!