I understand this post is over 6 months dry, but I am going rally on my '07 5 door LS. The roads around me are rough in places. The ORV trails are sandy and full of 2-4 inch tall roots, and there are muddy areas that can by over 6" deep.
I want to make more travel in my suspension, I want to know what tires would be the best choice, and I want to put more horses under the hood with a nice rumbling noise coming out of the exhaust.