These would be a huge upgrade over the 900 Base shocks. Now as far as the Rally, I'm not sure. I bought the Rally for the upgraded suspension and the overall looks I like better than the Base 900. That's a lot of cash for 3 shocks. I bought 4 Bilstein 5100's for my Nissan Titan for just a click over $300. I'm sure they are terrific in every way, but I'm sure the stock Rally shocks will be just fine for most buyers.