How to remove Air bag from Tahoe Seat

I purchased Leather seats off Ebay to replace the cloth seats in my 01 Tahoe. One of the seats that I was shipped has and airbag cover that has scratches on it. I would like to switch it with the cover or airbag off the existing cloth seat. Can the cover just be swithced or the whole air bag? If so how do you remove the air bag. Also does anyone know what size Reverse Torx is needed to remove my cloth seats from the vehicle. The back one is a E16 I think and the front one is bigger? They never do make it easy. Thanks.