Ok, I know there is havoc just to modify the newborn X. But, you have to realize that it is going to take some time. Now, I am not sure about anywhere else about performance mods besides Comptech USA. They are testing out headers for the 3.5 Liter Mdx engine, but since the headers are calling for a cat-back exhaust system, there isnt much hope on the list for it as of yet. But, I think by September - December of 2002, they will be out on the market to sell. I have heard word of a Supercharger for the X, but i am not sure, so please dont take my word for it. I hope my info has helped you, so please let me know and let me know if anywhere else is making performance mods for the MDX.