The Kicker 8" CVT fits nearly perfect in the factory box and sound decent. They don't hit very hard but sound better than the factory sub. Hadn't seen the RTs. Anything deeper than the 8" CVT won't fit though.
JL XD700/5 amp
Audison Bit Ten LOC & equalization
CDT HD61a components in front and rear
8" Kicker 10CVT8 in factory enclosure