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JET Performance 99111S

JET Computer Chips PCM 91 JEEP 4.0 AUTO ST2

JET Performance 99111S

561-99111S

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Ships 12/05/16 if Ordered Today
JET Performance 99111S JET Computer Chips PCM 91 JEEP 4.0 AUTO ST2 $250.46
JET Computer Chips PCM 91 JEEP 4.0 AUTO ST2

JET Performance 99111S Details

Jet Module; Stage 2;

Specifications:

CARB EO Number
D-234-5 (pdf)
Quantity
Sold individually
Manufacturer's Part Number:
99111S

Add up to 25 HP!

The JET Performance PCM provides the same type of Power Tuning as a JET Performance chip and is the most sophisticated tuning device for late model Chrysler/Dodge/Jeep vehicles available today. The JET PCM is a 20Mhz RISC computer that controls air/fuel, ignition advance, and transmission tuning for the ultimate in power gains.

Stage 2 is designed for the performance enthusiast; it features more aggressive programming to make the most horsepower and torque available. Fuel and timing curves are extensively modified for peak performance and drivability. Requires use of 91 octane fuel, 180° thermostat, and free-flow exhaust. Also works well with aftermarket intake systems, mass air sensors, TBI spacers, etc.

Does JET Performance 99111S fit your vehicle?

Narrow Results

1991 JEEP WRANGLER (YJ)

  • Fitment_Note: ECM Located Under Hood; Left Rear On Firewall~Improve HP/Torque/Throttle Response;Air/Fuel Ratio;Ignition Advance
  • Liter: 4.0
  • SubModel: BASE
  • CUI: 242
  • EngineType: L6 ( 4.0 L / 242 )

1991 JEEP WRANGLER (YJ)

  • Fitment_Note: ECM Located Under Hood; Left Rear On Firewall~Improve HP/Torque/Throttle Response;Air/Fuel Ratio;Ignition Advance
  • Liter: 4.0
  • SubModel: ISLANDER
  • CUI: 242
  • EngineType: L6 ( 4.0 L / 242 )

1991 JEEP CHEROKEE (XJ)

  • Fitment_Note: ECM Located Under Hood; Left Rear On Firewall~Improve HP/Torque/Throttle Response;Air/Fuel Ratio;Ignition Advance
  • Liter: 4.0
  • SubModel: BASE
  • CUI: 242
  • EngineType: L6 ( 4.0 L / 242 )

1991 JEEP CHEROKEE (XJ)

  • Fitment_Note: ECM Located Under Hood; Left Rear On Firewall~Improve HP/Torque/Throttle Response;Air/Fuel Ratio;Ignition Advance
  • SubModel: LIMITED
  • EngineType: ALL

1991 JEEP COMANCHE

  • Fitment_Note: ECM Located Under Hood; Left Rear On Firewall~Improve HP/Torque/Throttle Response;Air/Fuel Ratio;Ignition Advance
  • SubModel: ELIMINATOR
  • EngineType: ALL

1991 JEEP CHEROKEE (XJ)

  • Fitment_Note: ECM Located Under Hood; Left Rear On Firewall~Improve HP/Torque/Throttle Response;Air/Fuel Ratio;Ignition Advance
  • SubModel: BRIARWOOD
  • EngineType: ALL

1991 JEEP WRANGLER (YJ)

  • Fitment_Note: ECM Located Under Hood; Left Rear On Firewall~Improve HP/Torque/Throttle Response;Air/Fuel Ratio;Ignition Advance
  • SubModel: RENEGADE
  • EngineType: ALL

1991 JEEP CHEROKEE (XJ)

  • Fitment_Note: ECM Located Under Hood; Left Rear On Firewall~Improve HP/Torque/Throttle Response;Air/Fuel Ratio;Ignition Advance
  • SubModel: SPORT
  • EngineType: ALL

1991 JEEP COMANCHE

  • Fitment_Note: ECM Located Under Hood; Left Rear On Firewall~Improve HP/Torque/Throttle Response;Air/Fuel Ratio;Ignition Advance
  • Liter: 4.0
  • SubModel: BASE
  • CUI: 242
  • EngineType: L6 ( 4.0 L / 242 )

1991 JEEP COMANCHE

  • Fitment_Note: ECM Located Under Hood; Left Rear On Firewall~Improve HP/Torque/Throttle Response;Air/Fuel Ratio;Ignition Advance
  • Liter: 4.0
  • SubModel: PIONEER
  • CUI: 242
  • EngineType: L6 ( 4.0 L / 242 )

1991 JEEP CHEROKEE (XJ)

  • Fitment_Note: ECM Located Under Hood; Left Rear On Firewall~Improve HP/Torque/Throttle Response;Air/Fuel Ratio;Ignition Advance
  • SubModel: LAREDO
  • EngineType: ALL

1991 JEEP WRANGLER (YJ)

  • Fitment_Note: ECM Located Under Hood; Left Rear On Firewall~Improve HP/Torque/Throttle Response;Air/Fuel Ratio;Ignition Advance
  • Liter: 4.0
  • SubModel: SAHARA
  • CUI: 242
  • EngineType: L6 ( 4.0 L / 242 )
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