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    <img src="/uk/ImageMachines/PageTitle.ashx/rendered.gif?text=Engine&amp;mode=kbasetitle" alt="Engine" />
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      <img src="http://files1.porsche.com/filestore.aspx/normal.jpg?pool=multimedia&amp;type=image&amp;id=racingcars-991-gt3-engine-xle&amp;lang=none&amp;filetype=normal&amp;version=541aa644-ef9c-42fc-906d-7f8b4d7a6232" style="width: 615px; height: 313px" alt="" />
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      <ul class="defaultList">
        <li>Aluminium six-cylinder rear-mounted boxer engine</li>
        <li>3,800 cc; stroke 76.4 mm; bore 102.7 mm</li>
        <li>Max. power: 338 kW (460 hp) at 7,500 rpm</li>
        <li>Max. rpm: 8,500 rpm</li>
        <li>Single-mass flywheel</li>
        <li>Water cooling with heat management for engine and gearbox</li>
        <li>Four valves per cylinder</li>
        <li>Sequential multi-point fuel injection</li>
        <li>Required fuel quality: minimum 98 octane ROZ, unleaded</li>
        <li>Dry-sump lubrication</li>
        <li>Electronic engine management (Bosch MS 4.6)</li>
        <li>Race exhaust system with regulated race catalytic converter</li>
        <li>Twin-branched muffler with centred exhaust pipes</li>
        <li>Electronic acceleration pedal</li>
      </ul>
      <p class="footnote">The illustrated car shows the concept car (incl. endurance package).</p>
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