How to Make a Mustang GT Faster

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The Ford Mustang has built a reputation as one of the nation's most popular sports cars. Since the car's introduction in 1964, enthusiasts have flocked to dealerships as new models hit the showroom floor. Despite the Mustang's quality engine design and competitive presence on the race track, owners are always looking to reach new heights in speed. There are some easy, do-it-yourself methods that can increase speed and add up to 40 horsepower to your Mustang GT.

Things You'll Need

  • Ratchet
  • Socket set
  • Flat-head screwdriver
  • Cold-air intake kit
  • Aftermarket exhaust system
  • Battery terminal wrench
  • Phillips screwdriver
  • Performance chip

Cold-Air Intake

  • Use a ratchet to disconnect your Mustang GT's mass-airflow sensor plug, which you can find between the air box and the throttle body.

  • Remove the stock air box, using the ratchet.

  • Remove the upper intake hose clamp with a flat-head screwdriver, and remove the factory upper air intake tube.

  • Install the aftermarket upper intake pipe, using the flat-head screwdriver and supplied hardware.

  • Reinstall the mass-airflow sensor, using the ratchet.

  • Attach the aftermarket, lower cold-air intake pipe to the mass air-flow sensor housing with the hose clamp that came included in the intake kit.

  • Tighten the hose clamp with the flat-head screwdriver.

  • Attach the included air filter to the other end of the intake pipe with a hose clamp.

  • Tighten the hose clamp with the flat-head screwdriver.

Exhaust

  • Remove all the oxygen sensors on the factory mid-pipe, using an oxygen sensor socket.

  • Pull out the four flange bolts that connect the mid-pipe to the headers, as well as the four flange bolts that connect the cat-back exhaust to the factory mid-pipe, using the ratchet.

  • Remove the cat-back hangers by sliding them out of the rubber grommets.

  • Install the aftermarket mid-pipe by attaching the four flange bolts to the headers using the ratchet.

  • Attach the aftermarket cat-back system by sliding the exhaust hangers back into the rubber grommets.

  • Reconnect the four flange bolts that connect the mid-pipe to the cat-back exhaust, using the ratchet.

  • Reconnect all the oxygen sensors, using the ratchet and oxygen sensor socket.

Performance Chip

  • Remove the ground cable (black cable) from the vehicle's battery, using a battery terminal wrench.

  • Unclip the passenger side kick panel to access the electronic control module (vehicle's computer) mounting screw.

  • Pull out the mounting screw with a Phillips-head screwdriver.

  • Unplug the electronic control module by hand.

  • Plug the performance chip into the electronic control module.

  • Plug the electronic control module plug into the other end of the performance chip.

  • Screw the mounting screw back into place, using the Phillips screwdriver.

  • Snap the kick panel back into place, and reconnect the vehicle's battery.

Tips & Warnings

  • To make exhaust removal and installation more efficient, place your Mustang GT on a lift, jack stands or ramps.
  • Before doing any work on your exhaust, soak the factory exhaust bolts in a rust penetrant. This will help loosen any rust that has formed on the factory exhaust, enabling easier removal.
  • When removing oxygen sensors for exhaust installation, be sure to use an oxygen sensor socket. You can find this tool at an automotive parts store.
  • When ordering a performance chip, be sure to inform the manufacturer of any modifications done to your Mustang GT. This allows the manufacturer to program the chip properly to obtain the best possible performance.

References

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