both suncoast and PPE kits are good, I wouldn't look at other kits because they pretty much have the market cornered for quality and reputation

for most uses tie-rod sleeves are probably a good idea, shouldn't need a whole lot more unless you plan on beating the crap out of it

You may want to consider head studs in the future as well if you plan on running a larger turbo

 

Very good. Ill stick with the PPE IV than,

As ill get the tie rod sleeves and than look into the braces.

As far as head studs and a bigger turbo thats a while away. I know my tranny needs to be done thats my big thing right now.

I keep reading about upgrading the Cp3 to either an LBZ/LMM cp3? useful or just wasting a bit. Can the Lb7 stock injectors and Cp3 hold up for the 600? i know that i wont be aggressive on my tunes. I want it to all be stress free as possible.

 

you will need bigger injectors for 600, and it would probably be better to run dual cp3's at 600hp for reliable fueling, it will be far less taxing than with just one, with 600hp you will be commanding a lot of fuel, and you may need more air to clean it up as well...


I know 500hp is about the limit for stock injectors, turbo, and Cp3, you can go higher but your gona be pushing their capabilites to the extreme, and you're more than likely going to break something