Racing Seats

"Dial tilt forward/recline mechanism not recommended for 2 door cars needing rear seat access. Seat height 37.5 in., width across seat 21.25 in., width across shoulders 21.75 in., depth 23.5 in. No seat mounting brackets are included."

Yes you do need brackets.
 
I have the X2C motorsports racing seat and I looked at the ones you are getting too! It came with brackets but I had to go to lowes and make an adaptor for the brackets for my seats also.......It was a pain but the weight savings were phenominal! Saved over 100lbs!

"ED"