Since when is there enough air space for 4 subs in a mustang trunk??? 2 Decent subs, a good amp and the right box would probably sound better. imo.
__________________ 88 T-Top GT Flowtech Cat less H-Pipe, Flowmaster Original 40's, FRPP A/C Delete Kit, FRPP Smog Pump Delete, Cone Filter (no cold air yet due to lack of inner fender wells), 12000k H.I.D.'s 4 fogs and heads, Alpine CDA-9855, Orion HCCA 10" subs, Rockford BD 1500.1, Orion HP4600 4 channel, All Orion Interiors, March Perf. Adj. Alternator Bracket, Smog Delete, 3gen Alt, Underdrive Crank Pulley, Eibach Sportline Springs.
Carb Swap in progress... Edelbrock 600, Performer RPM Intake. | 
look at my speakers i had 
