[bm5bullit]

I have received a few questions regarding this tune and most of them center around the same questions that affected the E39 and E60 M5's when they were new or slightly used cars. The two most common questions are: will the tune affect my warranty and will the dealer/factory be able to detect the mod. Both of these would be subject to Magnusson-Moss Act and very much affected by your relationship with your dealer.

I think most of us on the board know that these questions came up with the E39/E60 and dealers did question a small percentage of warranty claims on heavily modded cars. These are 2 very valid questions but have to be an individual choice as to whether you want to test the limits of your car stock or if you are looking for that extra margin of safety that BMW built into your car.

I, for one, am willing to accept these possibilities because I want to know what this beast can do. My .02.