Hey everyone, I am thinking of doing one or the other. I would like to get some more traction to the ground on my C5, so what would be the best approach for me? Thanks!

I would go wide body. See link below (my car is featured in their L5 gallery, dark grey one at bottom).

The widebody rear qtr panels run approx $850 and your looking at about $1,000-1,200 to paint and install. To tub by the time you buy the kit and install is similar in cost. The wide body looks great (if you like that sort of thing-I do) and allows you to run rims with 2" wider lips.

http://www.lewisfivemotorsports.com/index.html