Procharger Ho System 2009 Challenger
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For a baseline, we ran the '09 Challenger on our Mustang chassis dyno. Through the automatic transmission, our 5.7 Hemi (with K&N cold air kit and Magnaflow exhaust), made 309 horsepower at just under 5,200 rpm, and 333 lb/ft of torque at 4,400 rpm. View Related Article
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