hey guys..i just changed my exhaust...i had the hooker cat back but i changed the muffler to a Spintech muffler...all i can say is..it kicks ***....it sounds mean as hell...and the muffler looks like its bulletproof....there is deff some quality in there craftsman ship...and i recommend the spintech exhuast...i just want a high flow cat now just smooth out the tone...im goin to try and get some sound clips on here..so u can hear spintech on a 305..sticks out from the crowd...