Alright. First thing you need to do is find out what is coming with the kit. Not all kits are the same. Then go from there. I would get a bopost controller. it is not needed, but you would be able to adjust the boost instantly just sittting in the driver seat. You would not need camshafts. If anything, you would need pisotns and rods. Our rods are a little weak which is why you cannot boost real high. Pistons would be to lower the compression. 7 psi with the DD turbo is for daily driving. If you go to the track, you can give it a little more. Not much and not often. You need to talk with who you are buying from because they should have all this info. Not us. You still haven't even stated what kit you are going with.
im going to buy the DD turbo and it comes with the following
-Audi TT turbo and recirculation valve
-Manifold & Downpipe (both of which bolt directly on; no cutting)
-Piggyback ECM, with plugs to connect to the factory ECU (no cutting and splicing)
-Toyota oil pan, modified with return line fitting
-Polished aluminum piping
-New Air Filter
-All necessary hoses and fittings. They are all pre-fabbed, so no cutting is required to install the kit. i have emailed the guy who sells them and he hasent emailed me back yet. im researching on things i would need for this turbo and to make it work.
THANKS! any more things i need?