My buddy was trading in his Flex, so I was able to get some goodies off it. I ditched the stock rims for G-FX OR7's (same size as stock) and also got some Megan Racing coilovers. I dropped it 1.5". I spent the whole day dialing them in and it rides great!
I wasn't planning on doing it, but I got a deal from Mike for a parts swap when he was trading in his Flex. I have his old wheels, brakes, and coilovers.