Alright. Finally broke down and decided to put a system in my GP. I've had plenty of systems in my GPs and they all have been too loud.(kicker CVRs, kicker L5s, JLs, MTX Thunder 8000s.) Ive been just wanting something to put a little more beat behind the music. So I bought a 10 inch Kicker L7 Solo baric, and bought a ported box. I just got it installed today. I have a JVC head unit, 8 gauge Stinger power wire, 8 Gauge Stinger ground wire, and Stinger RCAs, MTX 421D Amp, 10 inch Kicker L7 Solo Baric in a ported box.

My question is, am I under powering it?

Do I need a bigger amp? If so explain what I need please.

Thanks in advance.