I need an exhaust on my car currently i do not have a muffler on my camaro with 305 in it. I am looking for possibly a catback system that is gonna rumble the whole car and u can feel the interior resonance of the exhaust system. I want it to sound like a muscle car.

get flowmaster then.

^ What he said.

i have a flowmaster 80 series running off a 3" pipe from TES headers and no cat ... ya. get flowmaster if u want the scary muscle car sound. quick Q though, i had the L98 with crane 1.6 rollers and a racing cam - you could practically feel the lift on the cams when it was idling and you were next to it. a good high lift cam is the only way to get that real muscle car sound, but a rumbling flowmaster isn't a bad start