Quote Originally Posted by ATK_Designs View Post
I was comparing the HKS to the X02 where the HKS got a throatier and higher pitch tone than the XO2. It's HKS signature sound.

X02 doesn't drone as much as other true dual catback such as EVOTT or Injen because they copied the HKS's design with a parallel pipe.
parallel pipes mean nothing. its drones. Ask w0ady. he had it its was loud and drones like no other.