When I put my catback system on, I had to get a 3" to 2.75" reducer pipe from Napa. I don't remember what the part number was, but I think it started with EXH something after that. I could be wrong. I searched on Napa's site and I couldn't find anything of the size. Does anyone know the part number for the 3" to 2.75" reducer pipe, or know where I can find one? Autozone said that they don't carry a 3" to 2.75" reducer pipe, just 3" to 3" and 3" to 2.5". If anyone can help me out, that would be great!