Nissan 370z Supercharger from Stillen – 515 HP
Stillen has long been the master at tuning the Z-car from Nissan. From the 300zx, to the 350z, to the next generation 37z; Stillen is the master of modifying Nissans. The latest supercharger kit for the 370z and Infiniti G37 is no joke. Spout off these numbers to anyone and they will literally cream their jeans: 515 HP! Yes for less than $6k bucks you can have a fire breathing monster in the form of a modified Nissan 370z thanks to a Stillen supercharger. Read more »
The Scion TC has filled a huge gap in the Import Tuning Market left open for a few years by Honda when they had no new Civic Si for sale. Well the aftermarket has exploded with every kind of part you could hope for the Toyota Scion TC. And Toyota Racing Development (TRD) was one of the leading innovators and developers of Scion TC tuning parts. 
The Cadillac CTS-V already comes with over 550 horsepower from the factory. This car is based on the monster Corvette ZR-1 and has a detuned version of the Supercharged LSA engine. Well Hennessey Performance Engineering has a couple of performance packages that boost the power output by extraordinary amounts! The most basic package is the V600 upgrade. This package consists of 3 upgrades that will net you some big gains. 