Replacement Seats must a one-piece, bucket-type race seat, be securely mounted and provide fore/aft and lateral support. Replacement Seats must accommodate, with appropriate routing, 5 (or more) point safety belts including sub-strap. OE seats may not be modified to accommodate belts, aftermarket seats must be installed per manufacture guidelines. It is highly recommended that the passenger side has the same or better equipment as the driver’s side.