We have been obsessing over this R8 Twin Turbo system. In usual Heffner fashion we wanted to make something that looked like it could have come on the car from the factory. Well, I think we have done it. Right now the system is in raw fabricated form and now that we have completed dyno testing the car we will be removing the system for coating and polishing. I'll save the pictures of the intercooler for later until all of the finishing touches have been added. When it is complete it will look much like the factory intake manifold to give this system the factory installed look that we were going for.

As of now the car is running on 6 psi and a 11.8 to 1 AFR and probably has a little more ignition timing removed than necessary to be on the safe side for now. This set up has given us a result of 536 rwhp. This is a 183 rwhp gain (more than a 50% increase) over what the car had when it came in with a Stasis exhaust and Revotech ecu tune.

We will also be doing a 100 octane program that we expect to get near 600 rwhp which should put this car solidly in the high 10 second quarter mile range. More to come soon!

Heffner Performance has released some new information about their latest tuner job. The Heffner Audi R8 Twin-Turbo may look like it "came from the factory," but the details from the car's Dyno Sheet shows a clear upgrade.

According to the engineers, the tuned R8 has a 183 rear-wheel horsepower gain over the stock model. The 536 rwhp rating is well over 50% higher than a factory-shipped R8. The tuner firm claims that with 100 octane fuel, this car may be able to realize 600 rwhp, and a sub-11 second quarter-mile.

Although this is an exciting development for Audi fans, we would also like to know the horsepower rating at the flywheel. Engine dyno figures were not released.

The car also gets a new intercooler and factory-look custom intake manifold. Pictures of the Heffner Audi R8 Twin-Turbo are likely to be released as soon as the company paints and polishes the car.

Based in Sarasota, Florida, Heffner Performance has created performance and styling modifications for the Dodge Viper, Ford GT, and several Lamborghinis. The company also designs some custom packages to fit specific customer needs.

This video snippet shows the upcoming Heffner-treated Audi R8 going from second to fourth gear on the freeway. As is typical with video footage, the car's true power potential cannot really be seen on a screen. Its pull however, should be quite hectic in real life.

Heffner is going for a factory look and feel with their twin turbo system. They want customers to get more than what the standard car offers but without feeling like they had visited a backyard garage mechanic to achieve that.

At the moment the car is said to run 6PSI and an 11.8 to 1 air/fuel ratio. It kicks out 536 rear wheel hp but should attain about 600rwhp after drinking 100 octane fuel. Heffner reckons these changes will give it a quarter mile time in the high 10 second range.