|
Even the OEM mufflers have a tiny bit of resonance,you have to try hard to hear it but it is there around 2.5k rpm. Any OEM muffler will be resonance free and from what I hear most single muffler design exhaust for our cars(aftermarket included) don't have much resonance,but if you want more +hp then dual design mufflers(that have resonance) is the way to go.
__________________
-99' Zenith Blue 5-spd...didn't agree with a center divider on the freeway
-01' S Orient Red Metallic 6-spd...money pit...sold to buy a house 
|