I just got another MT motor but now im in a bind, I have the option of running 2 10's or 2 15's in the trunk of the Buick. My question is should I run the 10's in about the same size box I have now (4-5 cubes @ 32) or go with a sick design I came up with using 6in external aero's through the rear deck in about 8-10 cubes in the mid 30's for the 15's. The amp(s) depend on the coil config which I have not chosen yet any suggestion would be helpful.