5.4L Modular Motor Intake Manifold Test - Factory Fast Vs. Advanced Aftermarket
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To establish a baseline, we ran the factory Navigator intake on the modified 5.4L. Equipped with the Navigator intake, the low-compression 5.4L produced 426 hp and 411 lb-ft of torque. As expected, the Navigator intake offered exceptional (and unequaled) low-speed torque production. View Related Article
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