We sold quite a few supercharger kits this year, and had great feedback from our customers. They loved the kit, and the only thing they were wishing was for more snow (which was a very common refrain unfortunately this year). The kit will work at sea level, but we haven't worked out the mapping for it yet. Still some testing to do on our part before we release it to sell. We have such a high standard before our products go out to the general public that we are willing to fore go a few sales to ensure that we put out a quality product. We plan on doing more testing this coming year to get the setup perfected for sea level and lower elevations. But for those about 5K and up, we have a great setup figured out. We do go to a smaller pulley for the higher elevations to still reach the boost figures we are aiming for. Hopefully, we will be able to get the supercharger set up for the Axys soon so we can begin testing it and getting it ready for sale. And we have no idea on price yet for the Axys kit, but I would imagine that it will be similiar in price to the Pro kit. The Pro Supercharger runs 7500.00.