FRONT SPEAKERS
 

I just installed a pair of 6 1/2 JBL front speakers...they are 2ohm as needed for proper sound/amp function....what an improvement!
They are available at crutchfield.com for $120 but I bought them directly from the EBAY JBL Factory Store...paid $37 with shipping...what a deal!
The bass is better and the clarity if more evident than the stock Infinity set, but keep your expectations realistic as the limitations of the Infinity AMP prevent anything too great.