If you swap out the front brakes or rear axle on your car, the bolt patterns may not match. These billet 6061-T6 aircraft aluminum adapters will allow you to switch bolt patterns.
Spacers are equipped with 12mm-1.5 metric studs and 12mm-1.5 plain tapered open end wheel nuts. You may need to purchase new 12mm-1.5 nuts to fit your wheels from a local wheel shop.
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Summary: changed to 11 rotors and had to space my wheels out 1 inch so I got a vary high quality spacer to do the job correctly
Yes, I recommend this product.