Middle Make sure car model is a DX/LX/CX or HX. If cat is undercar(EX model)after header, this p/n will not fit. Also requires the following for installation: Front gasket 256-269 1 per car Rear gasket 256-036 1 per car Rear hanger 255-383 1 per car Front hanger 255-217 2 per car Tension spring bolt 258-944 4 per car Tension spring 251-203 4 per car
