I purchased the A'PEXi Power Intake for the TSX. I used it for a day, and I have to go against some opinions. The A'PEXi intake is definitely not louder than the Weapon-R. This is probably because the Weapon-R is constructed of metal tubing from the filter to the throttle body, whilst the A'PEXi is only a short pipe of steel and then all the rest is stock tubing. Don't get me wrong, the A'PEXi is still very loud and may perhaps be just as loud when VTEC cracks, but it definitely is not louder. I also chose the Weapon-R over the A'PEXi because of the look. I believe the full metal piping from the TB to Filter looks much nicer than the Stock tubing that spontaneously morphs into a steel pipe.
The one thing the A'PEXi Power Intake has over the Weapon-R is its RESISTANCE TO HEAT SOAK. Because the A'PEXi is not metal piping all the way to the TB, it stays cooler than the Weapon-R. Still very warm, but not as warm as the Weapon-R.
In the end, they are both Short Ram Intakes that do not do much other than make your k24 sound the way it should sound... amazing.
The one thing the A'PEXi Power Intake has over the Weapon-R is its RESISTANCE TO HEAT SOAK. Because the A'PEXi is not metal piping all the way to the TB, it stays cooler than the Weapon-R. Still very warm, but not as warm as the Weapon-R.
In the end, they are both Short Ram Intakes that do not do much other than make your k24 sound the way it should sound... amazing.