I saw that thread in the Florida section I think.... I wouldn't worry about him, he can't even write a sentence. I have personally installed 2 sets that have had no issues, one in a turbo car that revved out to 8500 all the time. As was stated before.... and I know that you know this, the N1 springs have less spring pressure than the regular 16/20ve springs. LOL some people just know everything. He sounds like a special ed student in middle school.