What should i upgrade too?

I got a honda pilot with the big three already done alt, battery,0 gauage i got two L7 kickers 12' on a fosgate t1500.1 i got 4 beyma pro 6g40nd with 4 jl tweeters on a fosgate T1000.4 its loud yes but i want louder and more bass any suggestions? I have the truck space to fit and carry heavier subs.

It's time to upgrade to a single 12 or a 15.

Get a better woofer like Sundown Audio, Skar Audio, SMD Audio, FI Audio, DC Audio.

Upgrade to better hearing protection.

Depends how far and wide you need to disturb other people. There's a chance you're suffering hearing loss.

You should probably upgrade to some hearing aids. Go to an ear doctor and have your hearing tested. Your present system probably isn't loud enough for you because you are suffering from hearing loss. Two L7's on that amp at 2/3 output should be able to produce 116 decibels measured from 6 feet away, which is as loud as a typical rock concert. From 4 feet away at 1/3 power they should produce 110 decibels of sound. For many people, any noise over 110 decibels is painful, therefore there's either something wrong with your hearing or there's something wrong with how your system is set up and adjusted. My first guess is that you are using poorly designed and matched speaker cabinets.

" Upgrade to better hearing protection. "

Save the money for your future