I have what I believe to be a GT-ONE N1, however there are no markings on it to validate. Here is a link to my for sale ad. If you are interested, I will give it to you for the cost of shipping. In the box probably weighs 35lbs. Will ship from 97034.
This came off my 1994. Should fit any NA1 engine. I believe this to be a GT-ONE N1 exhaust. Unfortunately there are no markings on the exhaust that can substantiate it. Based on the gt-rom.net web site it appears to be a GT-ONE N1. http://www.gt-rom.net/gtrom/gtone/e_n1_muffler.htm If it is...
www.nsxprime.com
PM me if you are interested.
Thanks,
Mark