A mate recently bought some bride seats on my behalf which were later returned when we suspected they might be fake. Luckily he had his own new genuine bride to compare against... in the end we couldnt be 100% sure they were fakes but putting it next to the known genuine seat (which had made in jp tags etc) there were enough differences to make us want to return them. The quality just wasn't quite right, the material didnt look as hard wearing & appeared shiny in the pic's, some dodgy stitching etc...
We took dozens of pics comparing the real and suspected fake differences - will try to dig them up if anyone is interested.