For some reason I was thinking that a tuner had bought the kit, and modified/customized it to their personal specs. Basically a DIY kit with custom plumbing. So what I was saying was to see how much your version differed from the kit version, and if the difference is not all that great, purchase the kit parts you needed (i.e. blower, intercooler, fuel system, etc. same as kit so purchase plumbing).
When I re-read what you wrote you were pretty clear, I guess I was having a brainfart.

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Reporter: "Do you realize you could have killed someone?"
Kid: "Yeah but I wanted to do hood rat stuff with my friend."