Boost your bike's audio with this XL Amplified Speaker Kit. The speakers in this kit offer superior bass response for an overall better sound when riding. 100% plug and play so you don't have to miss any seat time for upgrades. Hogtunes takes pride in their systems. This kit has a 20-year warranty on speakers and a three-year warranty on the amplifier.; The 200 watt (400 Peak) 4 channel amp mounts inside the fairing on a custom mounting bracket supplied in kit Requires no extra harnesses or special dealer software downloads Includes Hogtunes REV 450-RM amp and six GEN 4 - 6.5" speakers with grilles Amplifier powers front and lower speakers. Radios power runs rear speakers 100% plug-n-play wiring, lower speaker adaptors and all required hardware to complete installation Lower "fronts" come gloss black to match inner fairing of liquid cooled model bikes System is easily expandable to add additional amplifier 4-channel amp mount required for amp installation (J&P part number 743-641)