im using JL c2 650 comps in the front and c2 650x in the rear. got em for approx $100 a pair from caraudiogiants.com and im also using an alpine power pack to push them. they're decent, definitely an upgrade in the rear doors and the tweeters can handle more power without getting as harsh as factory...but knowing what i know now, id prolly spend a little more on some C5s. the power pack from alpine costs about $130 and significantly improved the factory speakers before i swapped. maybe something to consider depending on what ur looking for.