Another tuner who wanted to brag about its achievements in terms of transforming a new model into something more powerful and unique are the Germans from Hofele Design.
They call their program the SR8 and it addresses the 2011 Audi A8 D4 for which they developed a sportive suite and a software optimisation kit that will enable the 4.2-litre V8 FSI gasoline plat to jump from 372 PS to 390 PS and the 4.2 TDI CR unit to output a total of 390 PS and 900 Nm pe peak torque instead of just 350 PS.
Hofele’s body kit consists of a new front bumper with big air intakes and original RS5 mesh inserts, a rear apron with an integrated diffuser plus a 4-tube sports muffler and a rear trunk spoiler.  
The muffler has an additional air flow and it provide a sportier sound, while the diffuser can made out of real carbon fiber or be painted in the in the car’s colour or in a contrasting colour like silver of black.
The Hofele 2011 Audi A8 D4 rolls on custom alloys which can range from 20 to 22 inches in size, wheels that are in connection with the vehicle’s air suspension which has been further enhanced with a lowering module that can bring the car closer to the asphalt by up to 40 mm.
For the inside Hofele offers a bi-colour interior, with two-colour seats that have a quilted stripe made of soft nappa leather, special stitching, plus various other unique touches. 

Source: Hofele Design