just installed qq series in my bss,they sound great but the pipes are new and i installed them before i put the pipes on the bike so i dont know what the original baffles sound like,but they are loud and hope they get deeper as they (break in)

 

I have a set on my V&H Big Shot Longs.. and they sound GREAT!!! I get lot's of compliments on the sound. Go ahead... Pull the trigger!