This system was built due to the excessive noise created by my intake and exhaust modifications. Looking back, I certainly accomplished my goal and then some. This is by far the best setup I've had in any of my cars thus far...
-aiwa cdc-x217 head unit
-kenwood 1/2 DIN equalizer with sub output
-lightning audio b150.2 amp powering sub:
-12” sony xplod subwoofer
-orion 25x4 amp powering the 4 door speakers:
-3-way pioneer speakers in the front (6.5”)
-2-way pioneer speakers in the rear (6.5”)