Have a read through the US forum subject and you'll note that neither Fujitsubo nor their retailers answer questions.
Fujitsubo absolutely DO answer questions, but you have to contact them using their native language,
Japanese. I wouldn't necessarily regard a few posts on a US-based forum as the sole arbiter for this topic.
And I think you'll find that the situation regarding their
international re-sellers is that they too are not asking specific questions in technically-competent Japanese.
If you know better, why not share, please, your knowledge here - publicly for the greater good.
For the greater good of
who, specifically? What questions do you want answered, and why? Indeed, very much WHY. It seems to me that - far from "the common good" - you are just gathering data on another manufacturer's product to use as ammunition to promote your own. You seem to concentrate on finding negative aspects which you can contrast with Z Story products, selectively.
As I keep pointing out, I don't see your interest here as being altruistic. You have a dog in the fight, don't you? Every single post you make has an advertisement for your Z Story products at the bottom of it.
Your comments - with their undercurrent of negativity and between-the-lines casting of doubt - are unseemly in light of you retailing a rival product. I've told you before that
you would be better advised to let your products speak for themselves, but here you are again posting aggressive, unfounded and simply mistaken comments about Fujitsubo and repeating unreasonable criticism (the guy who bought an exhaust which FGK specifically says will NOT fit his car) and open-to-debate conjecture (the "
twin pipe exhausts are no good" guy for example) whilst never even once addressing what is important for FGK's
Japanese customers (99.9% of their business).
For Japanese customers, FGK's products are ROAD LEGAL. The 'Legalis' systems are certificated by JASMA and Japan's transport ministry, do not invalidate insurance and do not need to be removed and replaced in order to pass the Japanese equivalent of the MOT test. They are also readily available, replaceable in sections and compliant with Japan's very strict (end-user focused) consumer laws. They also actually self-manufacture the products they sell, using Japanese labour and paying Japanese overheads (ie, not cheap).
Unless you take these basic points into account you cannot hope to comment on the product accurately, or fairly.