Anyways, I still think the upgrade is great. Got plans to do it myself and will start collecting parts in the garage (again). I am just trying to make sure no one spends $1000 with the wrong expectations. I've never once commented about the looks or bragging rights. That's all up to you and what floats your boat. I just don't want someone doing this upgrade thinking they will knock 50-feet off their stopping distance. Even with the stock LS brakes and tires an M5 only stops 14 feet shorter at 70mph. That's 1 car length. And the difference gets even smaller the slower you go.