When you first fire a freshly built engine, aren't you risking metal flakes running through the turbo? The reason I'm asking is because the new engine already has a good filter, but I have a turbosaver kit from trcustoms to install. I just ordered a cartridge filter for $25 shipped. If I install it before firing the engine, then I probably should replace with another new cartridge, right? Seems silly to spend $50 in cartridge filters when the engine already has a good filter now (Wix). Any opinions/input? Thanks