it's simple enough to remove the belts. The problems are; the seat belt chime needs turning off, the side air bags plugs need resistors fitted, and as the front belts plug in, that issue needs resolving to avoid the airbag light staying on. Space for race seats is very tight, new belt anchorage points need to be made for the inner front and a bar at the rear. My seats are fixed and do not adjust, this saves weight and cost. The weight saving is massive and is the main reason my car is so quick on the 1/4 mile.