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26VIDEO: Heffner Performance teases Twin Turbo Audi R8

Heffner Performance Twin Turbo Audi R8 - click above to watch the video

24"Bonkers" is Relative: Heffner Performance cranks out the 1100-hp twin-turbo Lamborghini Murcielago

Heffner Performance Lamborghini Murcielago Twin-Turbo – Click above for high-res image gallery

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