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Robin Wahler's automatic-equipped C6 produced 311 rwhp in stock trim. With the heads/cam package and custom tuning by Jeremy Formato (shown above), the car put down 443 rwhp-a 132hp jump. Torque increased from 308 lb-ft at the tires to 414. The dyno would probably have shown better numbers, according to Rev Xtreme's Dino Clark, but the transmission was saddled with a looser-than-stock converter, which sapped some power. The cost of the parts, installation, and tuning was roughly $5,000.