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Renowned Audi tuner Nothelle has dubbed its latest creation a "Porsche-killer." A lofty title, but considering the amount of effort that was expelled on boosting the 3.2-liter V6 from 250 HP to 520 HP, it will certainly keep pace with its cross-town rival in a straight line.

The firm's kit for both the hardtop and cabrio TT employs a bi-turbo arrangement to produce the aforementioned horsepower bump and a tire-decimating 468 ft.-lbs. of torque to propel the Bauhaus two-door to a top speed of 191 MPH. The suspension has been firmed up with the company's coilover suspension that drops the TT 25mm overtop 20-inch rolling stock.

The exterior gets a body to match its extreme performance, utilizing a three-piece front fascia, along with side skirts and a trio of aero elements in the rear to increase downforce at speed.

More information about all the options provided by Nothelle is in the press release after the jump.

[Source: Nothelle via Carscoop]

If you fancy your CUVs on the sporty side, have we got a ride for you! German tuner nothelle can transform your Q7 into a firebreather that should humble a Cayenne Turbo.

While nothelle has performance and appearance upgrades for both the 3-liter turbodiesel and the 4.2-liter V8, its the top of the line twin-turbo kit for the 4.2-liter that will open their eyes at the country club, with its 572 hp and 531 foot-pounds of torque. With an extra 130 hp and 80 foot-pounds over the Porsche, nothelle's Q-ship should be able to kick sand in the face of a Turbo Cayenne any time you feel the urge.

More after the jump...