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Welcome to Hennessey Performance (HPE) – since 1991 our company has modified over 10,000 vehicles for performance enthusiasts from around the world.  HPE is the home to the largest lineup of late-model high-performance sports cars, muscle cars, supercars, trucks & SUVs. Hennessey Performance offers complete turnkey cars and upgrade packages for some of the world’s most exciting vehicles. 

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Hennessey ZL1 HPE850 Upgrade

• 850 bhp @ 6,300 rpm

• 860 bhp lb-ft Torque @ 4,100 rpm

• Hennessey Lower Pulley Upgrade
• High-Flow Cylinder Heads
• High-Flow Heat Exchanger Upgrade
• Upgraded Valve Springs, Intake and Exhaust Valves
• Upgraded Lifters & Push Rods
• High-Flow Air Induction System
• Long-tube Stainless Steel Headers
• High-Flow Catalytic Converters
• Custom Hennessey Camshaft upgrade
• All Necessary Gaskets & Fluids
• Professional Installation
• HPE Engine Management Calibration
• Dyno Tuning & Road Testing (Up To 400 Miles)
• 1 of 100 Limited Production
• Hennessey & HPE850 Exterior Emblems
• Hennessey Premium Floormats
• 2 Year / 24,000 Mile Limited Warranty

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Hennessey SS HPE750 Supercharged Upgrade

• 751 bhp @ 6,300 rpm
• 734 lb-ft torque @ 4,000 rpm

• High-Flow Supercharger System
• Stainless Steel Long-Tube Headers
• High-Flow Catalytic Converters
• CNC Ported Cylinder Heads
• Lightweight Intake Valves
• Extreme Duty Dual Valve Springs
• Titanium Retainers & GM Valve Seals
• HPE Hydraulic Roller Camshaft Upgrade
• Hydraulic Lifter Upgrade
• Extreme Duty Pushrod Upgrade
• HPE Engine Management Calibration
• Professional Installation
• All Necessary Gaskets & Fluids
• Dyno Tuning & Road Testing (Up To 400 Miles)
• Hennessey Exterior Badging
• HPE750 Exterior Badging
• Supercharged Exterior Badging
• Hennessey Premium Floormats
• 3 Year / 36,000 Mile Limited Warranty

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Hennessey SS HPE750 Supercharged Upgrade

• 605 bhp @ 6,500 rpm *
• 542 lb-ft torque @ 4,200 rpm

• High-Flow Supercharger System
• High-Flow Intercooler System
• HPE Engine Management Calibration
• Professional Installation
• All Necessary Gaskets & Fluids
• Dyno Tuning & Road Testing (Up To 400 Miles)
• Hennessey Exterior Badging
• HPE600 Exterior Badging
• Supercharged Exterior Badging
• Hennessey Premium Floormats
• Serial-Numbered Dash & Engine Plaques
• 3 Year / 36,000 Mile Limited Warranty