I chose to go with the CP-e nano and the HTP inlet pipe (from GB on the ms3 section). I was going to go with the Corksport full length SRI, but the diameter of the inlet pipe left me a little skeptical. I'd love to give an impression of my setup, but I'm still waiting on my intake since they seem to be on backorder.
It's been a long standing debate on which is better, the CAI or a SRI. Everyone will always have their preferences and swear their opinion is right, but throwing the turbo into the equation changes things a little bit. While a CAI does draw colder and denser air than a SRI, the difference is relatively small and mostly negated by the increased static pressure from a longer pipe and the fact that the air picks up a substantial amount of heat as it passes through the turbo. On a NA car the static pressure increase is less of an issue and there is no heat gain from a turbo so you notice more gains from the CAI setup than a SRI. An efficient intercooler is of far greater importance than a cold dense intake charge in a turbo application. Either way, there are gains from both options.
Of the currently available options, the SRI is less expensive and when coupled with a new turbo inlet (which have seen substantial price decreases with the release of the Cobb and CP-e pipes) greatly reduces restrictions pre-turbo without breaking the bank. In total I have paid less than $400 for my SRI and inlet pipe, but if I had acted a week later I could have probably shaved almost $50 off that cost. As far as HP gains are concerned, HP A + HP B = HP C does not exist and is commonly referred to as "ricer math". Closely related mods will work together to boost each other instead of adding a fixed increase for each one. Listed gains on a website for a given upgrade are no indication of what you are going to see in your given application. Just relax and know with a setup like this you will notice a nice gain in HP and improved throttle response. Exact numbers and feel will vary from car to car since there are so many uncontrollable variables.
