3D-printed exhaust outlets? An air-to-water intercooler placed inside the turbocharger plenum? Acura's IndyCar-bred ARX-06 engine is unlike anything found in IMSA's new WeatherTech SportsCar Championship hybrid GTP class, and thanks to Honda Performance Development, RACER was taken on a tour of the 670hp twin-turbo V6 motor ahead of its competition debut at the Rolex 24 At Daytona. #imsa #gtp #acura #arx06 #rolex24 #hpd #marshallpruett #racermagazine
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