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How to Install JMS BoostMAX Performance Booster - Race Version on your Mustang

Installation Time

30 hours

American Muscle
Shop Parts in this Guide

Step 1

• Ignition key off, remove key from ignition.

• Open the vehicle’s hood.

• Disconnect the negative battery terminal.


Step 2

• Locate the MAP Sensor (Located on top of the black plastic intake manifold)

• Disconnect the OE MAP Sensor connector from the MAP sensor.

• Connect the BoostMAX Wire Harness Labeled “MAP Sensor” in-between the MAP Sensor and the
OE Connector.

• Use zip-ties to secure the MAP sensor wiring.

• Pictures show the Intake - MAP location on: 2.3L Mustang.



Step 3

• Locate the TIP Sensor on the 2.3L Mustang. It is located on the Drivers Side, Front Corner Bottom: On the discharge side of the Intercooler
(picture 1)

• Connect the BoostMAX Wire Harness Labeled “TIP Sensor” in-between the TIP Sensor and the
OE Connector.

• Use zip-ties to secure the TIP sensor wiring.

• For easier TIP access, remove the lower front
shield.


Step 4

• Connect the BoostMAX Module to the DB-25 connector, secure the screws with the screwdriver.

• Route the BoostMAX wiring  harness alongside the factory air-box.

• Use zip-ties to secure the BoostMAX Module near the factory air-box.

• When routing the wiring, be sure to stay away from high heat sources (exhaust).


Step 5

• Route the flat four pin wire harness down and into the inner fenderwell. Make a small slit in the rubber
firewall grommet and route the wire through the firewall to the drivers side of the vehicle.

• Note: The firewall plug might be covered by insulation.

• Note: It may help to attach the wire harness with tape to a stiff wire (coat hanger) in order to fish it through the firewall opening (use two people).

• Use zip-ties to secure the wiring.


Step 6
• Connect the Pedal Position Harness to the flat four position main BoostMAX Harness (via flat four pin
connector, left side connector in the picture)

• Choose between connecting the Pedal Position Harness to the Remote Boost Knob OR to the “87
Octane Red Chip”. (Right side connector in picture)

Note: In the picture the Pedal Position harness is in the center, the main harness plugs into the Pedal Harness and then the Remote Knob Plugs into the Pedal harness.


Step 7

• Locate the Accelerator Pedal Position Sensor (Located on top of the Accelerator Pedal bracket)

• Disconnect the OE Pedal Position Sensor connector from the Pedal Position sensor (pull the red
tab out).

• Connect the BoostMAX Wire Harness Labeled “Pedal Sensor” in-between the Pedal Position Sensor
and the OE Connector.

• Use zip-ties to secure the Pedal Position Sensor wiring.


Step 8


• Route the Remote Boost Knob up and near the center console. We recommend routing the cable
along side the center console (push the cable up behind it) so you can adjust the knob “on the fly”.

• Use zip-ties to secure the Remote Boost Knob wiring.

• Adjust the BoostKnob to the desired performance level.

• Recommended knob settings: 87 octane = 50%, 91 octane = 90%, 93 octane = 100%.


Step 9

• Start and test the vehicle, it should function like normal with additional WOT power. If the Ignition Key is “ON” the Green LED on the BoostMAX will illuminate ON.

• If the vehicle has a wrench light and no throttle: it is due to disconnecting the Pedal Position Sensor.

• Turn the vehicle off, remove the key, wait 30 seconds and restart the vehicle (the wrench light will
automatically clear itself on restart).
Enjoy the extra plug & play BoostMAX power.



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