I installed these for my upcoming STI brake swap on my 22 WRX, Spacing rotors, aftermarket wheels, and aftermarket lug nuts dont leave a whole lot of threads for the nuts to grab onto. You will most likely need a set of open ended lug nuts! I Enjoyed the ease of installation. It would have been nice for ARP to include a recommended torque spec for the install but I just went until the backing stopped flush with the surface. They make installing a wheel a bit easier, they look great, and they give me peace of mind knowing I have the same studs installed as most weekend racecars I've seen (coming from an aspiring weekend racer).

I installed the ATS front Brembo kit on my car and needed extended studs due to the use of a spacer behind the rotor. Replaced the front wheel studs with these and they installed very easily. Make sure you get a wheel stud installer tool..makes installation a breeze. Attemted to install them on the rear as well but my wheel hub would not release, so we stuck with the OEM studs until I can bring it to a shop

Build quality out of the box was great. Fit stock hub without a problem and will be great for running wheels with spacers. Lot of extra threads for lugs.