Rev 225 Series 2-Channel Amplifier Kit FL '98-'13 225-watt, 2-channel fairing mounted amplifier (112.5W x 2 RMS @ 2-ohms), Features R.E.M.I.T. circuitry for excellent FM reception from a Class D amp, plug-and-play with supplied wire harnesses, Not compatible with CVO models with factory amplifiers installed, Part #4405-0234 required if this is the second amp on FLH models, Part #4405-0486 required for FLTR applications