Kompressor und TÜV? Nun, ich hatte die Frage schon öfters gestellt und noch nie eine Antwort bekommen. Das sagt alles... 
Die Kollegen in den USA schwören ja auf KraftWerks. Hier ein paar Infos:
All of the KraftWerks S2000 kits include:
• Rotrex C30-94 Supercharger
• Rotrex Self-Contained Oiling System with Oil Cooler
• Upgraded KraftWerks/Laminova Engine Oil Cooler System
• KraftWerks Oil Filter Relocation Kit
• KraftWerks Air-to-Air Intercooler
• KraftWerks Recirculating Bypass Valve
• KraftWerks Aluminum Intake and Intercooler Piping
• KraftWerks Silicone Hoses
• KraftWerks Oiled Air Filter
• Upgraded KraftWerks Automatic Belt Tensioning System
• KraftWerks 6-Rib Belt
• KraftWerks Brackets and Hardware
The 06+ Base and High-Boost kits include:
• Hondata/KraftWerks ECU Reflash
o Adjust Fuel
o Adjust Timing
o Revised VTEC Window
o Injector Compensation
o Closed Loop Fuel (Increase Fuel Efficiency)
• 650cc Injectors with KraftWerks Plug and Play Connectors
The 06+ KraftWerks Kits:
-The 06+ Base and High-Boost kits are currently CARB Pending (as of 3/11/08)
-The High-Boost kit REQUIRES an upgraded clutch/pressure plate.
-Absolutely no tuning is needed on the Base and High-Boost kits. This is a complete bolt-on kit, with everything you need included.
-These kits come with a pre-paid shipping box to Hondata. The ECU is shipped overnight to Hondata for its reflash, and shipped overnight back to you. You will not be going through any Hondata dealers to complete this flash.
-The revised VTEC window on the Hondata reflash is determined by a few things. Throttle Position, RPM Range, and Boost Pressure all help make VTEC seamless, with no hesitations. You will not be in VTEC at cruise speed.
AP1+ and International KraftWerks Kits:
-The AP1 and AP2v1 will use a different tuning solution, because Hondata is unable to flash the 00-05 S2000s. We will be announcing this new tuning solution shortly.
-International S2000s will have a KraftWerks supercharger solution, once we confirm our AP1 and AP2v1 tuning.
YouTune Kits:
-The YouTune Kits allow you to select any KraftWerks upgrade pulley, and optimize the boost curve to your taste. Injectors and ECU/Tuning solution are NOT included with the YouTune kit. The YouTune kit is designed exclusively for the tuner/racer that has a standalone ECU, properly sized injectors, and access to a dyno/tuning facility.
-The KraftWerks upgrade pulleys will take the supercharger to its RPM limit. The max boost pressure will depend on your setup.
General KraftWerks Kit Information:
-The KraftWerks kits and Rotrex supercharger have a 2 year warranty.
-The Base and High-Boost kits are made to be used on completely stock engine components. If you have modified engine internals or an aftermarket head-gasket, we highly recommend the YouTune kit.
-There will be an upgrade path from Base kit to High-Boost kit. The Hondata Reflash will cover both the Base and High-Boost kits. A simple pulley and belt change will be the only changes to get to the next level.
-Any aftermarket exhaust can be used with the KraftWerks kits.
-Test pipes can be used with our Hondata reflash.
-The stock MAP sensor is utilized in both the Base and High-Boost kits. No problems using the stock MAP sensor.
-The KraftWerks kits use a single belt in the system. We have had great belt life, and no issues with our belt drive. We recommend having an extra belt at home, or in the trunk on a long trip. Having a spare belt also makes it easier when you decide to change your belt. You can change it instantly, and then order another spare or two from us while you drive around on your fresh new belt.