These were from a american thunder feline back flowmaster system for a 86-? camaro part # 17234 these are "NEW NEVER MOUNTED' AND IN PERFECT CONDITION WITH THE CLAMPS"!!!!!!! They are 3" all the method with 19" of refined stainless steel with a slight angle and a tapered cut at the end. I was gonna modify these to fit my 2012 silverado borla exhaust however got a corsa catback rather. 100$ If u have any? s don't hesitate to ask and my # is in the pic sec.