OMG!! These are some bad-ass sounding pipes!!Serious headturners too! People keep pulling up beside me at lights asking me about them or commenting on how sharp they look! Love the sound! Deep, throaty and honestly, borderline on waking neighbors if you leave house early in the morning.. The sound rumbles in my head long after I get off of her!! Totally awesome, amazing, make the hair on the back of your neck stand up Sound!! Buy 'em!! You won't be disappointed!