I upgraded my Shaker 500 by replacing the head unit with an Alpine, replaced the 4 5x7's with Boston Acoustics and replaced the subs with the Kicker/Shelby replacements. Subs are running off the factory amps and they have plenty of kick. In fact I donít run them at full power; itís just not my taste. Im also using Alpines KTP-445 Power Pack amp that pushes a true 45w to each 5x7 speaker. My head units max volume is 40, anything over 20 is to loud for me. Zero distortion too.
2007 Roush Stage 1,Roush Stage2Suspension,Bullitt Strut Brace,RoushCAI,BrenspeedTunes,RoushAxleBack Exhaust,SteedaUnderdrivePullies,SteedaSSBrakelines ,MGWshifter,PaintedRearAxle,Carbon FiberInterior,Leather, Stripes,Alpine CDA-9886 w/BostonAcousticsSpeakers/Shelby Kicker Subs,Sirius, BMR Adj Panhard Bar,CHE K-Member Brace with Torque Limiters,3D Carbon Eleanor Grille,Optima Yellow Top,RadiumEngineeringCatchCan,Shaftmasters Driveshaft,UMI Traction kit,StopTech slotted Rotors,EBC Reds.