Review on Enhance Engine Protection with BLOX RACING BXAC-00405-6 Magnetic Oil & Transmission Drain Plug Set for Honda by Eric Chapman

Installed this on my 2011 Civic Si last week. I'm sure it will fit all 8th generation Civic Si coupe and sedan. The magnets appear to be very strong. Both plugs fit very well. No leaks. Both require a 14mm spanner or socket. It's a good thing that there aren't sockets of different sizes, changing the oil isn't a problem. Overall a great product. By the way: The plug with the longer magnet goes to the engine oil, in case someone gets confused.