I just had headers and a new y pipe and loud mouths installed on my SS and i am very happy with it. its not that loud if you short shift and keep your foot out of it..but if you shift at 3000k it starts to get really loud but in a good way. i have gone WOT and I was there i love the LM1 i woul not change it i just wish i had them on for the first 15k miles i put on her.