1990 Pontiac Grand Am Le Coupe 1990   Pontiac   Grand Am   Le Coupe Add Aftermarket Parts Close Aftermarket Section Use this section to re-calculate your vehicle's horsepower and pounds per horsepower with the aftermarket performance parts you select. Not all parts will apply to all vehicles and all figures are estimates at best. Original Horsepower: 110 Original Pounds Per Horsepower: 23.3        Replace Exhaust Headers (about 10% HP increase)        Replace Catalytic Converter (about 3% HP increase)        Replace Cat Back (includes Muffler) (about 6% HP increase)        Replace Muffler (about 2% HP increase)        Replace Air Intake (about 10% HP increase)        Replace Camshaft (about 12% HP increase)        Replace Mass Airflow Sensor (about 5% HP increase)        Modify Engine Ports (about 5% HP increase)        Add Turbocharger or Supercharger (about 50% HP increase)        Add Nitrous (about 150 HP increase)        Take Trash Out of Car (remove 5 lbs from vehicle weight)                  1990   Pontiac   Grand Am   Le Coupe Overview Add Performance Parts 2007 Approximate Value:   $1,550 Gas Milage:   22 city / 33 hwy Horsepower:   110 Torque:   135 Curb Weight (manual):   2,566 lbs Pounds Per Horsepower (manual):   23.3 Standard Transmission:   5 Manual Optional Transmission:   3 Automatic Engine:   2.5L - I4 - 110HP                                                              Find on eBay - Find on Wikipedia - Find News - Find Reviews More Information Number of Doors:   2 Number of Seats:   5                                                              << Back to Results <<     If we do not display data about a specific feature or vehicle then that feature may not be applicable or we may have yet to acquire that piece of information. Please note that all information we collect and display is, at best, an estimate. Real world figures may differ greatly. Please contact us if you see any vehicle data that you know is incorrect.

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