Invidia Catted Downpipe (P/N: HS08SW1DPC) run for only a couple of thousand mile. In original box. Asking $300 Also, have GrimmSpeed 3” to 2.5”(?) Adaptor, GrimmSpeed metal multilayer 3” gasket and Subaru 2.5” stock-type gasket, in great shape. No leaks. I have more parts if anyone is...