2-ch 400w fairing speaker amplifier kit for 2014-2022 Harley® StreetGlide or Ultra with stock Harley 4.3 Std, 6.5GT or new GTS touch-screen radio, NO SPECIAL FLASH needed. Full range class D audio amplifier, spec'd at 200watts RMS per channel X2, (400w total) into 2-ohm load @ 14.4vdc. Amplifier mounts to custom made stainless steel 2-piece bracket system, to provide solid and secure mounting inside the StreetGlide or Ultra fairing. ROKKER XXR amplifiers are dialed in for this specific StreetGlide/Ultra speaker configuration, to provide maximum highway performance. (Updated amplifier gain/frequency settings as of 02-15/2021) Custom made plug-n-play wiring harnesses are included, along with heavy gauge power/ground wires for the fused battery connection, all necessary mounting hardware & complete installation/operation instructions. Amplifier itself measures 7 ¼" X 4 ¾" X 1 ¾".