Audi R8 V10 Twin Turbo by Heffner Performance

Several months have passed and the engineers at Heffner Performance with Jason Heffner in the lead have made efforts to finish their latest creation - an Audi R8 V10 Twin Turbo. A lot of work has been put into the development of the V10 twin turbo program and now, Heffner Performance have something to be proud of.

The newly developed engine features twin Garrett GT35R turbos pumping out 6 psi of boost producing 725 hp, and that is a whopping 225 ponies over the original model. The American company even offers a 12-month or 12,000-mile (7,500 km) warranty for parts on the induction system. The engine is a  5.2 liter DOHC V10, four valves per cylinder German masterpiece.

“To date I would have to say that this is the most refined aftermarket twin turbo car that I have ever experienced. Exhaust noise levels can be quieted down to near stock levels with the larger mufflers and can be a bit louder with the smaller mufflers. We worked with the guys at European Performance Labs to engineer the engine calibration and the job that they did is nothing short of spectacular. Power delivery is very smooth and linear and the whisper of spooling turbos makes the hair stand up on the back of your neck,” states Heffner.

The exhaust levels have been minimized drastically and larger mufflers have been attached to the car. Due to its close collaboration with the European Performance Labs, Heffner Performance got the chance to closely monitor the engine calibration.

The modified R8 will be used for regular track days.