All of the kits are going through an upgrade right now with the official introduction of the Rotrex kit also happening.
The Rotrex kit will be introduced first, this is the centrifugal kit that we have done several custom installs of here. We are installing the final pulley/belt setup on our 2.4L test car here to get some final horsepower numbers on that kit. It is an ideal kit for automatic cars or those that like to really rev their engines. I personally love the kit, very smooth and lots of fun. That kit will just come in 1 version that will run around 14psi peak pressure and will work on completely stock cars or those with modified exhausts also.
The older Stage 2/3 supercharger kits are having several parts upgraded. We changed the front plate that has the autotensioner to an easier install and upgraded the idler pulleys and were also able to reduce the parts. The supercharger outlet manifold is being re-cast into a smoother, better flowing piece that will gain some more power on those kits also. The first prototype on the casting had a couple small issues that we are having redone now, then those kits will be back.
So, the Rotrex kits should start to be available next week, the Stage 2/3 kits are probably about a month out from ordering.
Hope that helps,
Sales - 864-438-4949
Tech Support - 864-907-6004
2.4L - Stage 3 Supercharged - 305whp - 93 octane
2.4L - Rotrex Supercharged - 340whp - 93 octane
2.4L - Custom Turbo - 304whp - 93 octane
2.0L - 2871 Hybrid turbo - 371whp - 93 octane