box alpine type r subs

Vehicle : Astra G Location in the vehicle: In the Trunk Space available (Length x Width x Height): ? Subwoofer make and model: Alpine type r Subwoofer Size: 12 " Number of Subwoofers: 1 Type of Port (Kerfed, Slot, Aero, etc.): Slot What type of music do you like?: hip hop , rap , rock Is...

what would be the best box for my alpine R's 12" 500 RMS (x2) , i definatly want to go ported, but should it be an L port, or ported with cylinders, CU, Ft? they move air, they are in a box right now that my type S's (1223D) subs were in but they push too much air out the port, and I know they...