about imperfections due to human rebuilding of turbos, how does this smoking phenomenon apply to stockers? I was under the impression that SnowmanZ was talking about stock turbos. I was thinking of replacing everything from downpipes back, but dont want to open another can of worms. Is this issue a real concern (hit or miss I assume) for stock turbo'd cars as well, or was SnowmanZ turbos just on the fritz and being hidden by his precats?