This is the GrimmSpeed 3-Inch Downpipe To Stock Cat-Back Adapter. This adapter will allow you to adapt and properly seal an aftermarket 3-inch downpipe to a 2.5-inch OEM or OEM-like cat-back exhaust.
DETAILS:
CNC laser-cut steel construction
Designed with a flared adapter transition
Provides a smooth connection from a 3-inch aftermarket downpipe to a 2.5-inch cat-back exhaust system
Flanged for an OEM donut gasket
Simple bolt-on construction
Will not obstruct exhaust flow
Provides a leak-free seal
Includes new hardware for the installation