This was discussed on the other forum for a bit. A few replaced the driver with an aftermarket driver, with limited results. For them it was marginally better, but really not worth the cost.
The consensus was to go with an aftermarket upgrade.
I ended up going JL Stealthbox and can't be happier. Expensive but worth it.
09 BLACK Sahara 4 Door - Auto, G2 4.88s
TF 2.5" Coil Lift w/shocks, TF Frnt Adj Trac, TF FLCA, JKS Discos, JKS Rear Adj Trac, LOD Full Rear GEN2,
A.C.E. Rock Rails, Viper TB: Check the Garage for more.