I was doing some research on the slip on system I wanted to purchase for my bike. Most of them made it sound a little too raspy and high pitch, neither of those tones appeals to me. I remember watching the clip on STG and I was like f*ck yeah! I want this system. I decided to get the silencer with this system and even with that it sounds nucking futs. Can't wait to take it for a spin tomorrow, I'll definitely be smiling from cheek to cheek.