These side mount seat bracket kits are made by OMP, but will fit most side-mount racing seats (bolt spacing 289mm / 11 3/8"). Compact, one-piece aluminum brackets are designed for extra strength. Allows a wide range of height adjustment (4" front and 4" rear). Height at center of bottom mounting hole is 3" (75mm); center of top mounting hole is 175mm (7"). FIA approved.