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Our anemic 4.6L turned out an unimpressive 237.34 hp and 268.63 lb-ft of torque with the blower and after-cat exhaust filled with broken catalytic-converter internals. After the intake and exhaust modifications, the truck scraped together 251.94 hp and 273.84 lb-ft of torque at the wheels. The computer has never had any adjustments or programming, the consequence of that was timing that bounced all over the place as the stock computer tried to make changes it couldn't make. Our A\F ratios were all wrong to boot, and that accounted for the minimal 14.6 hp and 5.21 lb-ft of torque gains.