Truck Tales - 2002 Chevy Pickup Upgrades
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We performed a series of chassis dyno-tests to get a complete before-and-after evaluation of the power for the record. The accompanying chart tells the final story. With the Dynatech headers, the combination of supercharger and exhaust mods was worth 120 rear-wheel horsepower. That's an increase of exactly 50 percent. View Related Article
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