Ok, I have an axle back here and I'm trying to figure out which car it's for. It's definitely not for a DC2 integra. It is however close. The only difference is that it's about 2 to 3 inches shorter than a DC2 axle back. Maybe someone's tried to fit an Integra axle back to their Civic before and knows which car this is for. Oh, and the pipe diameter is around 2".