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Here it is set up and ready to rock the dyno at Westech Performance. To complete the package, we bolted on a set of ceramic thermal-coated Doug’s headers (PN D319, $697). The 2-inch primaries and 3.5-inch collectors will help the 540 breathe properly while the 16-gauge construction and 3/8-inch flange means they will last. Before firing up the Superflow 902 dyno, we dumped a few gallons of 91 octane in the tank.