All of our four gauge amplifier kits are high quality and include everything you need to make your installation look great. If you are looking to complete your amplifier installation on your own, these 4 gauge amp kits make the task much easier. Every 4 gauge amp kit comes with everything you need to hook up your amplifier and make it look professional grade. Use a 4 gauge amplifier kit if you are looking to run 1200 watts or less through your entire system. All 4 gauge amp kits are kept in-stock and normally ship the same or next business day.