I have a 98 RK that I run American Custom Bombers on. I still don't get the loudness I desire. There's no cat in the headers since it so old but outta curiosity I took slipons off today and really like how much louder it was. There's also no baffles in my slipons. Is there any other slipons that you guys recommend to give me more sound. I just can't believe how much those slipons quiet it down when there's nothing in the pipe but some screen. I will say I get a nice deeper sound with the bombers on just a bit to tame.