Heffner Performance has finally finished their R8 Twin-Turbo package, which manages a nice 536 HP at the rear wheels (check out the dyno sheet below.) This is while running on only 6 psi of boost. Heffner promises they are working on an R8 V10 version of the twin-turbo package as... Read more

Heffner Twin-Turbo R8 Heffner Performance is known in the high-end tuning world for creating ultra-powerful versions of cars like the Dodge Viper, various Lamborghinis, and the Ford GT. Now they got their hands on an Audi R8 and added their own twin turbo system. The stock R8, according... Read more