Check this out, apoligies if has been posted before
Quoted below & pictures from AEV website
AEV has partnered with Magnuson to develop a Supercharger Kit for the 2007–2011 Jeep Wrangler JK 3.8L that utilizes the latest in Eaton’s line of Twin Vortices Series (TVS) superchargers and offers many performance benefits over other existing blower designs. Its advantage lies with its four-lobe, 160 degree high helix rotors, which provide increased air flow with a wider operating range and a higher pressure capability, while maintaining cooler operating temperatures and a quieter operation.
Known worldwide as the industry leader in supercharger technology, Eaton has become the preferred supercharger supplier for manufacturers such Audi, GM, Ford, Mercedes, Jaguar and Nissan. Eaton’s TVS hybrid-roots supercharger system offers many advantages over centrifugal superchargers when being used on daily driven applications. It is completely self-contained, virtually maintenance free, and delivers power earlier in the rpm range and in a more linear fashion. The end result is a supercharger system that compliments the driving habits of most JK owners, whether it is on the trail or in rush hour traffic.
With this technologically advanced system, your Jeep Wrangler 3.8L can achieve higher torque levels while maintaining its everyday drivability. During testing, a 2007 JK with 37" tires and 5.38 gears gained an impressive 40% more horsepower and 37% more torque at the wheels! Keeping reliability in mind, boost pressure is set at a conservative 5psi.
Whether on the streets or blazing a new trail in the great outdoors, you will never be at a loss for power with the AEV Supercharger Kit installed on your JK.
50-state emissions legal
Installs in 8-10 hours
100% complete bolt-on system
Fits with the stock hood or the AEV Heat Reduction Hood
Internal Bypass Valve virtually eliminates parasitic loss
High thermal efficiency
High helix four-lobe rotors with 160 degrees of twist
Improved air-handling characteristics
Acoustically designed for noise and vibration reductions
Utilizes all factory “push-lock” connectors
Eaton MP1320 TVS supercharger with integrated bypass valve
High flow fuel injectors
Diablo inTune Handheld Programmer
All necessary fittings, lines, belts, and hardware
Re-calibrated ECM (2011 JK only)
Speed control module (2011 JK only)
Standard 3-year/36,000 mile Warranty on the supercharger hardware
Standard 1-year Limited Warranty on electronics
Optional Extended Powertrain Warranty available - download form here.
Please Note: The AEV 3.8L Superchager Kit is compatible with LHD models only.