Mercury Grand Marquis Performance Chip
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App: 1999 Mercury Grand Marquis
Brand: Hypertech
Part #: 42000
Notes: "HYPERTECH MAX ENERGY POWER PROGRAMMER -- Extracts Every Energy Possible From Fuel Molecules, Increases Miles-Per-Gallon At Part Throttle And Horsepower At Wide-Open Throttle, Raises The Top-speed Limiter To Match High Performance Tires' Speed Rating, Improves The Engine's RPM Limiter For Increased Performance, Adjusts Individual Automatic Transmission Shift Points And Shift Firmness, Recalibrates Speedometer And Odometer For Non-Stock Tire Sizes And Gear Ratio Changes, Reads And Clears Diagnostic Trouble Codes And Turns Off Check Engine Lights, Lowers The Cooling Fan On/Off Temperatures To Match The Thermostat Rating, Can Adjust Settings Or Revert To Stock Calibration Any Time, Comes With A USB Cable For Internet Upgrade, With Hypertech's Limited Lifetime Warranty"
| Make | Model | Year Range | Chassis/Engine |
| Mercury | Grand Marquis | 1999 | 8Cyl 4.6L GAS, FI, Naturally Aspirated, VIN "W" |
App: 1996-2004 Mercury Grand Marquis
Brand: Jet Chips
Part #: 15003
Notes: "JET PERFORMANCE PROGRAMMER -- Adds Up To 100 Horsepower And 168 Ft/Lbs Of Torque, Designed To Modify Air And Fuel Ratios, Ignition Timing, Shift Points, Shift Firmness, Speed Limiter, And Rev Limiter Settings, Features Tri-Power Performance Tuning Modes For Regular, Midgrade Or Premium Fuels, Features A Built In Scan Tool With Live Data Monitoring That Allows Real Time Monitoring Of Several Vehicle Sensors For Fine Tuning And Troubleshooting"
| Make | Model | Year Range | Chassis/Engine |
| Mercury | Grand Marquis | 1996 | 8Cyl 4.6L GAS, FI, VIN "6" LS |
| Mercury | Grand Marquis | 1996 - 2004 | 8Cyl 4.6L GAS, FI, VIN "W" LS |
App: 2006 Mercury Grand Marquis
Brand: Jet Chips
Part #: 70612
Notes: "JET PERFORMANCE POWER CONTROL MODULE -- Add Up To 30 Horsepower, This Module Optimizes The Ignition Spark Advance, Air To Fuel Ratio And Transmission Shifting For Ultimate Power And Mileage Gain, Features Exclusive Dynamic Spectrum Tuning That Provide Optimal Performance, It Also Improves Throttle Response, Acceleration And Low End Torque, Great For Towing Or SUV Applications"
| Make | Model | Year Range | Chassis/Engine |
| Mercury | Grand Marquis | 2006 | 8Cyl 4.6L GAS, FI, VIN "W" GS |
| Mercury | Grand Marquis | 2006 | 8Cyl 4.6L GAS, FI, VIN "W" LS |
| Cougar | Grand Marquis | Marauder |
| Mountaineer | Mystique | Sable |
| Topaz |
| Ventshade | Mile Marker | Pace Edwards |
| Putco | Monroe | Bentley |