DONT get the lugnuts from Boothe Design. I did but the chamfer angle of the contact points is incorrect resulting in them having come loose on me several times. This in turn creates a groaning sound. I'd either go with ceramic coating or installing the RUF wheel studs like I did and using the black lug nuts + locking nuts from the 993. I like this option because this way you can just slide the wheels on without fear of scraping anything. Of course you can use wheel hangers but this is definitely an alternative.