For duals? The A body 2.5" kit fits the 5th ave and dippy cars. Guy at exhaust shop said it would be too much but a single 2.5" would be good. Just looking for the cheapest route. Getting the kit and a h-pipe would be around what the shop wants but a shop is custom and welded not clamped. There's also a guy on the dippy forum that only used the right side of the kit and thinks the left side might work for the left and I could do that myself and use an H-pipe but use an elbow to hook the driver side to the passenger side. But again clamped not welded