Kicker comp 8

i have already sealed off my door panels and currently have a set of Golwood 8" woofers in there.  they were cheap from parts express, but now i am wanting to get more puch out of the system, which an 8" woofer should produce quite well.  I have been looking at the kicker comp8" because they perform well as a free-air or infinite baffle speaker as well, which is what my set up is most like ( technically it is a large sealed enclosure).  How do you guys think these woofers will do as far as mid range.  they will be crossed over between 50HZ and play up to 300--350Hz. do u think they wil be muddy? or do you have any suggestions of other woofers to look into. Thank you for your opinions

anyone?