Yonaka header quality

Looking to buy some new headers. I have heard a mix of reviews for yonaka, everything from 'exceptional' to 'theyre okay for the price' to 'garabage, won't bolt to the head, don't buy them'

I know they're not the best out there, but I don't want to spend crazy money because I plan to go lsv within the next year, so I'll need to get a new header if I want my cat to sit properly.

There's no good oem options near me, and noone wants to ship.

Are yonaka good enough to get me by for a year or 2? Or am I not going to be able to bolt them to my head.

Also why is there so much discrepancy in reviews? I see them recommended and slandered in the same breath.

Thanks in advance