2.5″ adapter for installation of Full-Race 8th Gen Civic Si Catback to the OEM header
-or-
3.0″ adapter for installation of Full-Race 8th Gen Civic Si Catback Exhaust to 3″ downpipe or 3″ header.
Hardware pack available for ease of installation (Reusing gaskets and exhaust hardware is not recommended)
Hardware Pack Includes:
- (3) Studs
- (3) Nuts
- (3) Lock Washers
Vehicle fitment
Our vehicle fitment data should only be taken as a recommendation. It may not be 100% correct. Please double check with the manufacturer to be 100% sure for fitment.