it just sounds pricey to me for something relatively simple. I may be underestimating the cost of the components but $4400? I respect a company for developing a quality turbo kit and if you have the money then by all means do it. I just think the tc hype is driving that cost up a little bit, but hell if I had the money I’d probably do it too. Boost that thing.
edit: what about your waranty?