Product Description Year Make Model Grams adapters allow for a plug and play installation of the Grams 550, 750, 1000cc injectors for the 2012-2013 Civic Si. Please note that price is for 1 individual Adapter.This Part Fits:YearMakeModelSubmodel2012-2013HondaCivicSi MPN: G2-99-0060 Category: Fuel Delivery>Fuel Injector Adapters