TD6 power upgrade up to 250hp

I did a search for Jeremy J Fearn products here on the forum, but looks like you haven't used them for TD6 yet.

I would very much like to hear experiences from the 250hp power increase kit, which can be found from Jeremy J Fearn power and turbo kits.

Does this kind of kit come with any cons? Is TD6 strong enough to in long term to provide that kind of power?

Thank you for your opinions!