This is the Invidia 3" Downpipe to 2.5" Exhaust Adapter. The intended use of this adapter is if you have a 3" downpipe and need to mate it to your 2.5" cat-back exhaust system then this is the ticket. This adapter has been fabricated from high-grade stainless steel materials and will work with invidia Exhaust Systems, or similar exhaust systems.
