Aftermarket performance mods....

[Spy4cia]

I will be getting my Boxster S fairly soon, and wanted to know which modifications or additions you driving enthusiasts would recommend.

I don't want to add a supercharger, or anything that will invalidate my warranty. I also don't want to add anything that will add a great deal of stress to the engine, as I hope to keep this car for at least 10 years.

Based on those limitations, fire away!!!!!

Thanks,
Michael