its the stock grill off of an SI if you have a 99-00 SI remove your factory grill and flip it over take off the honda emblem it screws on on the SI grills and the additional SI emblem looks like an SI emblem from a 03 SI hatchback.
its real easy just like 2 screws its nothing like the cx dx ex or hx grills which are molded. but i made easy work of mine with a hacksaw blade most everyone uses a dremel and says be carefull i didnt have to worry and got uber flush with the hacksaw blade lol good luck on the grill