Ive had the quad tip borla stingers on my 2004 Z for about 10,000 miles. I am trading the car in this week if the deal goes through on my next car. I was just going to give the car up with the exhaust, but I figured someone on here might find use for them. They are in perfect shape, sounds great. Basically i'll need your stock Z06 muffler to replace my stingers, im not sure how much money to ask for along with the muffler. Someone make an offer. Email me at [email protected], this needs to be done soon as I hope to have my new car tuesday. I can probably arrange for the swap too.