These speakers amazed me! i found them a a store for twenty bucks! my car didnt have stock fours, but i have a two door grand am, so i had some empty space in the back seat above the arm rests. i just cut a couple holes and ran them into my 6 by 9s. they definatly made a HUGE difference with my highs!!! and they held up better than my last pair of sony six by nines! the sonys are fried, but the bosses are still screamin! BUT I HIGHLY RECOMEND NOT USING THE SPEAKER WIRE THAT COMES IN THE BOX!!! Like i said great speakers! and i know their rated at 200 peak, but does anyone know the RMS??