Banks' wastegated Sidewinder turbo is the ultimate upgrade for classic diesels. Up to +82 hp and +143 lb-ft (rear wheel). Tow uphill 53% quicker. Up to 29% more MPG! You'll hardly recognize Ol' Betsy. With Banks' turbocharging technology onboard, she'll tow up the grade quicker, and provide a phenomenal fuel economy improvement at that. No smoke! Banks wastegated Sidewinder turbo is the ultimate upgrade for classic diesels. Banks wastegated Sidewinder turbo unleashes gains up to +82 hp and +143 lb-ft torque. Tow uphill 5% quicker, 29% more MPG! F-250, F-350 and F-450 Pickup: The ultimate upgrade for classic diesels is a Sidewinder turbocharging system. Important: Some vehicle configurations require an extension kit for proper fit. Key Features: 29% more MPG. Engineered Performance. Tow uphill 53% quicker. The Power To Stop Traffic. Gain up to +82 hp and +143 lb-ft (rear wheel). Ultimate upgrade for classic diesels. NOTE: May require extension kit P/N 50018. 1983-1987 CDR Relocation P/N 42243 required