these are used. it is 2 1/4 to 3" pipes out to i believe 4" tips. looks and sounds great. before yall ask yes they have some resonance and yes they are loud but not annoyingly loud and the resonance is not too damn annoying. i loved them. i just bought a cherry bomb catback so these wont be used anymore. so i am looking for a new home for these. i am asking $75 obo plus shipping. if my offer is too high give me a price, i am always up for trades as well (i would like to get a catch can if possible)... so let me know what you got!!