How can I make my two 10" Kicker TC10 Comp's hit harder?

BIg Maggot Bill

New member
I have two TC10 Kicker Comps with a 300.1ZX pushing them, and a RCA RCD7625 head unit, they are still in there stock ported truck boxes. I have tried a couple ways to make them hit harder but nothing seems to work.
I have two TC10 Kicker Comps with a 300.1ZX pushing them, and a RCA RCD7625 head unit, they are still in there stock ported truck boxes. I have tried a couple ways to make them hit harder but nothing seems to work. Please explain your answers.
 
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