|  | STAGE-1 HP4 Performance Upgrade for GM 1994-1995 - Prom, Turbo-Master, Coupler, Fuel Pump Exchange: $621.99 - Core Charge: $75.00  Brand: HDP PerformanceProduct No: #HDP1445 This is the perfect upgrade for your 94-95 6.5. Adds 71 hp and 68 lb ft torque on "F" code motors & 58 hp and 46 lb ft. on "S" code motors. HP is rated at the flywheel. |
|  | STAGE-2 HP4 Performance Upgrade for GM 1994-1995 - Prom, Turbo-Master, Coupler, Fuel Pump, aFe filter, exhaust Exchange: $1055.74 - Core Charge: $75.00  Brand: HDP PerformanceProduct No: #HDP1654 This upgrade for your 94-95 6.5 adds 94 hp and 96 lb ft torque on "F" code motors & 79 hp and 70 lb ft. on "S" code motors. HP is rated at the flywheel. |
|  | STAGE-2 HP4 Performance Upgrade for GM 1996-1997 6.5TD - PCM, Turbo-Master, Coupler, Fuel Pump, aFe Filter, Exhaust Exchange: $1157.00 - Core Charge: $600.00  Brand: HDP PerformanceProduct No: #HDP1533 This is the perfect upgrade for your 96-97 6.5. Adds 94 hp and 91 lb ft torque on "F" code motors & 79 hp and 70 lb ft. on "S" code motors. HP is rated at the flywheel. |
|  | STAGE-2 HP4 Performance Upgrade for GM 1998-2000 6.5TD - PCM, Turbo-Master, Coupler, Fuel Pump, aFe Filter, Exhaust Exchange: $1157.00 - Core Charge: $600.00  Brand: HDP PerformanceProduct No: #HDP1651 This is the perfect upgrade for your 98-00 6.5. Adds 89 hp and 76 lb ft torque on "F" code motors & 74 hp and 67 lb ft. on "S" code motors. HP is rated at the flywheel. |
|  | STAGE-3 HP4 Performance Upgrade for GM 1994-1995 6.5TD - Prom, Turbo-Master, Fuel Pump, Coupler, aFe Filter, Exhaust, Injectors Exchange: $1722.74 - Core Charge: $75.00  Brand: HDP PerformanceProduct No: #HDP1281 This upgrade for your 94-95 6.5 adds 130 hp and 144 lb ft torque on "F" code motors & 109 hp and 110 lb ft. on "S" code motors. HP is rated at the flywheel. |
|  | STAGE-3 HP4 Performance Upgrade for GM 1996-1997 6.5TD - PCM, Turbo-Master, Coupler, Fuel Pump, aFe Filter, Exhaust, Injectors Exchange: $1805.00 - Core Charge: $600.00  Brand: HDP PerformanceProduct No: #HDP1572 This is the perfect upgrade for your 96-97 6.5. Adds 130 hp and 139 lb ft torque on "F" code motors & 109 hp and 110 lb ft. on "S" code motors. HP is rated at the flywheel. |
|  | STAGE-3 HP4 Performance Upgrade for GM 1998-2000 6.5TD - PCM, Turbo-Master, Coupler, Fuel Pump, aFe Filter, Exhaust, Injectors Exchange: $1805.00 - Core Charge: $600.00  Brand: HDP PerformanceProduct No: #HDP1652 This is the perfect upgrade for your 98-00 6.5. Adds 125 hp and 124 lb ft torque on "F" code motors & 104 hp and 107 lb ft. on "S" code motors. HP is rated at the flywheel. |
|  | STAGE-4 HP4 Performance Upgrade for GM 1994-1995 6.5TD - Prom, Turbo-Master, Fuel Pump, Coupler, aFe Filter, Exhaust, Injectors, and PMD-Isolator Exchange: $2271.74 - Core Charge: $75.00  Brand: HDP PerformanceProduct No: #HDP1657 This upgrade for your 94-95 6.5 adds 130 hp and 144 lb ft torque on "F" code motors & 109 hp and 110 lb ft. on "S" code motors. HP is rated at the flywheel. |
|  | STAGE-4 HP4 Performance Upgrade for GM 1996-1997 6.5TD - PCM, Turbo-Master, Coupler, Fuel Pump, aFe Filter, Exhaust, Injectors, PMD-Isolator Exchange: $2354.00 - Core Charge: $600.00  Brand: HDP PerformanceProduct No: #HDP1647 This is the perfect upgrade for your 96-97 6.5. Adds 130 hp and 139 lb ft torque on "F" code motors & 109 hp and 110 lb ft. on "S" code motors. HP is rated at the flywheel
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|  | STAGE-4 HP4 Performance Upgrade for GM 1998-2000 6.5TD - - PCM, Turbo-Master, Coupler, Fuel Pump, aFe Filter, Exhaust, Injectors, PMD-Isolator Exchange: $2354.00 - Core Charge: $600.00  Brand: HDP PerformanceProduct No: #HDP1653 This is the perfect upgrade for your 98-00 6.5. Adds 130 hp and 139 lb ft torque on "F" code motors & 109 hp and 110 lb ft. on "S" code motors. HP is rated at the flywheel |
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