the automatic transmission case is now constructed from cast aluminum. Likewise, the Z51 suspension package gets lighter weight aluminum front stabilizer links.
    Now on to the good stuff for the Z06, or "Improving on Perfection," as Chevrolet describes the improvements.
    Most notable is the 20 horsepower and 15 lb./ft. of torque increases, which takes the total output to 405 horsepower and 400 lb./ft. of torque. This was accomplished primarily by improving the flow of air through the engine with a revised air cleaner housing, lower restriction Mass Air Flow sensor, higher-lift camshaft in conjunction with lighter weight valves, and the elimination of the dual pup catalytic converters in the exhaust system.
    "We could have chosen to remain satisfied with our achievements for 2001," said Corvette chief engineer Dave Hill. "Instead, we set our sites on breaking the 400