Wow....best grammer award goes to sick rvr, congrats man, It's a prestigious award, cherish it dearly my friend.
Lol just messing with you dude, the 10% that I understood tells me that you were 'told' it had 300kw..is that at the engine, or awkw as there is a big difference.
Get it on the dyno ASAP champ.
A tomei build could mean anything, but for what you paid, I'd assume it wasn't a full bottom end etc.
Also is your wastegate external? Do you know what size turbo?
If you could get a proper list of all mods done, we could probably help you out a little better, cause at the moment, I think I can speak for most and say we're all a little confused.
Sounds like your rvr could either be a total weapon waiting to be unleashed, or ticking timebomb waiting to detonate lol....hopefully it's the former