Bought em to use with my sparco's because the bracket geometry looked like it would fit my base brackets better than the sparco mounts. They're not close enough so I'm going to break down and buy all sparco base and side mount brackets. My loss is your gain.
Never mounted in the car. Test fitted on one seat (fits seat fine but not my bottom bracket) so there's very slight wear from bolting it up. Otherwise brand new still in original box with hardware. Second set has only been opened to verify everything was there...brackets haven't even been assembled!
$160 for both shipping extra pickups welcome will not split. ($100/ea new plus shipping). Will trade for steel or alum sparco side-mount brackets
Link to site i ordered from:
Corbeau Racing Seat Brackets and Bases: Aluminum Sidemount Brackets