Dont know if its cheaper than the powertrix and no I dont have one but this is also another option. Right now im actually in contact with a dealership in Japan and I am trying to get details on a 99 wing from them. Hopefully it will be 5 times cheaper than the nismo. I have not seen it in person but I kinda feel as if the 99 wing will look a bit better than the 90-93. The Z32 has a wide butt and I think the 99 wing helps to give it a good proportion of with and height.