As you may know already, the Audi A4 is the most popular model from the German manufacturer and that's why, STaSIS, an American tuner decided to make it a little more powerful in order to show some difference on the road. The power yield of its 2.0T 4-cylinder engine was raised to 255 hp and 294 lb-ft with an acceleration rate of 5.3 seconds from standstill to 60 mph.
STaSIS claims this is faster than the Bmw and Mercedes-Benz. It can finish the quarter-mile in 14 seconds at 97.8 mph (157km/h).
These performance numbers are off the company's modified B7 A4's own but due to the European CO2 requirements this is still within normal.
To handle the new power the B8 A4's suspensions, wheels and tires were also upgraded. The next level, the Challenge Edition, gets all the improvements of the Signature Series, but comes with 20x9 wheels in high-grip Yokohama Advan street rubber in combination with STaSIS tuning on the Ohlins SL coilovers that can produce 0.99 g on the skidpad.
Stopping power comes from Alcon Monobloc calipers equipped with two-piece 370mm rotors that assist in shutting down the car from 60mph in just 119ft.
A more comfortable, daily driving set of modifications is provided by a Touring model with upgraded brakes and a tougher rear anti-roller bar. The price for all of these upgrades is $5,999 for the Touring version, but no price for the Challenge model yet.