Hey well thanks for your replies. I currently have a 80 series flowmaster with no cats. The only thing i dont like about it is the popping when i rev it. About the cutout i would think that i would loose hp if i put one on my basiclly stock LT1. What do ya'll think? I was also thinking about the loudmouth but i thought that i would loose hp on a stock LT1. What do ya'll think? Later on down the line i plan on getting Hooker LTs so keep that in mind.