Go to circuit city. the work will be guaranteed and its not a bad price. Cant really say how good they will do it though because it depends on the installer so check with them and see if he know what he is talking about.
I'd for go again man it was fun.hopefully nextime ill have 1/0, the big 3 done, and a ported box. Oh and amplify my door speakers.oh and big thanx for setting up my gain! You guys got really nice systems and ima have fun trying to improve like you