when it comes to serious turbo performance, you cant budget quality. yeah, some other kits are decent, but certain parts need to be the best quality built parts for turbo apps. manifolds are number 1 in my book where you cant skimp, aswell as intercoolers. ive seen way too many issues from people trying to get around this just to save a few bucks. im not saying you have to buy their kit, but their manifolds are reliable, race bred and street proven. street setups really fall into budget problems where they tried to get around this and most ive seen are not reliable. once you start forcing around 25lbs of boost in is when things start getting crazy enough to show their true colors. fitment, placement, all that comes into play aswell. keeping heat sources where they need to be and not influencing other things that can cause problems down the road.
not trying to bash, just trying to get the word out and enlighten those that dont have the experience with it.