Don't waste your money on that turbo timer dood. The way the coolant system is engineered, you don't need it. The oil won't get coked up in the turbo's oil feed line because coolant is continuously supplied to the turbo (via the upper reservoir) when it boils out of the turbo, after the car is shut off.

Don't buy an HKS exhaust, it's a waste of money. I had their down pipe and it gobbled balls, it's really restrictive even though it's a 3" pipe. I couldn't make power with it once I went big turbo. Make sure you get a nice "bell mouth" down pipe when you buy one, and honestly I would just buy an Ebay cat back to mate up to it. Don't waste your money on an HKS cat back, it's way over priced and it has a resonator which becomes a problem at higher horsepower levels.

For engine management, just get Open ECU. It's free engine management software that is just as good as anything else on the market. If you do wanna spend the money then go AEM standalone. Don't waste your money on cobb accessport or ECUtek. If Open ECU was out when I got my ECUtek, I could have saved $850

Before you buy an intake, make sure you know what intercooler you want to go with. I didn't think about this and got the injen cold air intake. When I went to a front mount intercooler, I was limited to the crappy overpriced injen unit because I didn't want to buy a new intake. This also caused me to be limited on power with the larger turbo.