I was in the same boat man, Even when i had my sti that was already turbo'd, when i went big it cost me net 13g's to build the block, rotated kit, clutch, fuel mods, etc...**** i probably spent more than that. It's such a hassle going big with forced induction. The car becomes way more temperamental, there was no more jumping and going, car had to warm up. I was always monitoring it, checking the oil, data logging it making sure there was no knocks. The car became more of a child. In the end I realized i enjoyed the car a whole lot more in it's semi modded stock form, none of the worry that i had when it was built, felt like i could just jump in and go. I'm pretty much sticking to my guns with the Z now. I want just jump drive and not worry about that ****. Like the others said if you already have a budget of 6g's then go ahead and double that. because even if you get the kit for 6g's you are going to find out that you have to spend 4 g's more on additional support parts/mods, not including labor to put it on, and then don't forget the tuning and the anxiety of hoping the car comes out perfect. That's just my opinion.
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