How can I achieve more bass out of my stock infinity sound system. I have the sub in the back but it doesn't produce much bass so I'm looking at upgrading it. My question is what will be the best way to achieve this

 

More Bass = More Sound Pressure.

If you want to keep your space, you might be able to get a replacement driver that will handle more power and fits in the factory enclosure (I don't know how much volume the factory sub enclosure is). Then add a good quality amplifier inline with the original speaker wires to drive it. Remember to make sure the driver parameters work with the enclosure volume and type (ported, sealed, etc).

 

I currently have the MOPAR kicker stage III upgrade, this is something you may be interested in, because it is plug and play and is a huge upgrade over stock IMO. Take a look at the kicker Stage III subwoofer amp and sub, it hooks nicely to the latches on the rear seat. I have been happy with this setup and it did what I needed it to in terms of being an easy install with extra bass from a plug and play amp.

 

The enclosure is approx .35 cu ft.

 

I will look into this. Or maybe replace the sub and amplifier but I don't understand the ohms so that may be a problem

 

Where did you find the kicker kit

 

I actually used polly fill in it to give it a deeper sound.. it doesn't do a ton since the box is so small but i do notice a difference

 

Thanks I will keep that in consideration too