HKS Tuning Tools

Vivid Racing carries ECU Tuning components from TurboXS, Greddy, AEM, Autronic, and more. If you don't see what your looking for, please contact us as 1-480-966-3040.


Since its beginning, HKS has been committed to providing well-integrated, reliable,and environmentally sound performance systems. Mr. Hasegawa's strong leadership, engineering genius, creativity and willingness to listen to customers are the pillars of the company's success. Monitoring consumer reaction and input on issues pertaining to material quality, external appearance, sound quality, and of course, performance, HKS stays in tune with automotive enthusiasts' needs. Moreover, HKS' products are designed to be user friendly for easy installation.

Today the automotive aftermarket industry is filled with start-up companies following in HKS' footsteps. None however, can match the depth of engineering or manufacturing resources available to the talented, highly motivated and dedicated employees of HKS.

For over a quarter century HKS products have been put to the test in drag racing, road racing, rallying, and top speed trials. HKS equipped vehicles have captured numerous racing championships and hold claim to a myriad of competition records using many “off the shelf”, race proven HKS components. As a result, HKS has been synonymous with “performance” in the automotive aftermarket industry for the past 35+ years.

View all HKS Tuning Tools products

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 HKS Fuel Cut Defender Mazda/Subaru/Toyota 

Model Number: 4501-RA002   View Price

HKS Fuel Cut Defender Mazda/Subaru/ToyotaThe HKS FCD is an electronic device developed to properly raise the factory fuel cut level on factory turbocharged vehicles. As modifications are made to optimize engine performance, the factory fuel cut is often triggered by higher boost levels which activate a fuel delivery cut-off as a failsafe procedure. Symptoms of fuel cut are hesitation, bogging, and/or illumination of diagnostic indicators.The electronic signal from the FCD will raise the fuel cut...
  
 HKS VPC Air Temperature Sensor Universal 

Model Number: 4603-RA001   View Price

HKS VPC Air Temperature Sensor UniversalAir Temperature Sensor for VPC and PFC F-CON...
  
 HKS VPC Air Temperature Sensor Mount 1/4pt Universal 

Model Number: 91112-083100   View Price

HKS VPC Air Temperature Sensor Mount 1/4pt UniversalAir Temperature Sensor mount for Air Temp Sensor of VPC and PFC F-CON. Available in 1/4 PT and 1/8 PT sizes. (Sensor Not Included)...
  
 HKS VPC Air Temperature Sensor Mount 1/8pt Universal 

Model Number: 91112-086100   View Price

HKS VPC Air Temperature Sensor Mount 1/8pt UniversalAir Temperature Sensor mount for Air Temp Sensor of VPC and PFC F-CON. Available in 1/4 PT and 1/8 PT sizes. (Sensor Not Included)...
  
 HKS OB-Link Type-FA20 Scion FRS 13-15 

Model Number: 44009-AK003   View Price

HKS OB-LINK extracts vehicle date from the on board diagnostics port (OBD)and sends it via Bluetooth to an Android device (Tablet/Smartphone and etc.)Features:Connects to OBD PortSend Vehicle Data via BluetoothPerformance Data That Can be Extracted:Engine LoadBattery VoltageFuel PressureCAT TempEGT SensorAmbient Air TempLeft/Right G ForceFront/Rear G ForceYaw RateFor iOS and Android Smartphones and TabletsRequires iOS 6.1+, Android 2.33+Fitment:Scion FRS 2013-2015Notes:Pictures for marketing pur...
  
 HKS OB-Link Type-FA20 Subaru BRZ 13-15 

Model Number: 44009-AK003   View Price

HKS OB-LINK extracts vehicle date from the on board diagnostics port (OBD)and sends it via Bluetooth to an Android device (Tablet/Smartphone and etc.)Features:Connects to OBD PortSend Vehicle Data via BluetoothPerformance Data That Can be Extracted:Engine LoadBattery VoltageFuel PressureCAT TempEGT SensorAmbient Air TempLeft/Right G ForceFront/Rear G ForceYaw RateFor iOS and Android Smartphones and TabletsRequires iOS 6.1+, Android 2.33+Fitment:Subaru BRZ 2013-2015Notes:Pictures for marketing pu...
  
 HKS OB-Link Type-FA20 Toyota GT-86 

Model Number: 44009-AK003   View Price

HKS OB-LINK extracts vehicle date from the on board diagnostics port (OBD)and sends it via Bluetooth to an Android device (Tablet/Smartphone and etc.)Features:Connects to OBD PortSend Vehicle Data via BluetoothPerformance Data That Can be Extracted:Engine LoadBattery VoltageFuel PressureCAT TempEGT SensorAmbient Air TempLeft/Right G ForceFront/Rear G ForceYaw RateFor iOS and Android Smartphones and TabletsRequires iOS 6.1+, Android 2.33+Fitment:Toyota GT-86 2013-2015Notes:Pictures for marketing ...
  
 HKS Speed Limit Defencer Type 1 Mitsubishi EVO X 08-15 

Model Number: 45002-AM002   View Price

The HKS SLD is an electronic device designed to eliminate a vehicle's factory speed limiter. When competing on the drag strip or a circuit track, the factory speed limiter can hinder a vehicle's performance. The HKS SLD is available in two versions: Type-1 is generally for vehicles equipped with a manual transmission and Type-2 is generally for vehicles with automatic transmissions.Features:Speed Limiter DefencerEliminate Factory Set Speed LimiterFor Manual TransmissionFitment:Mitsubishi E...
  
 HKS Speed Limit Defencer Type III N2 Infiniti G35 03-07 

Model Number: 45002-AN002   View Price

The HKS SLD is an electronic device designed to eliminate a vehicle's factory speed limiter. When competing on the drag strip or a circuit track, the factory speed limiter can hinder a vehicle's performance. The HKS SLD is available in two versions: Type-1 is generally for vehicles equipped with a manual transmission and Type-2 is generally for vehicles with automatic transmissions.Features:Speed Limiter DefencerEliminate Factory Set Speed LimiterFor Manual and Automatic TransmissionFitmen...
  
 HKS Speed Limit Defencer Type III N2 Nissan 350Z 03-09 

Model Number: 45002-AN002   View Price

The HKS SLD is an electronic device designed to eliminate a vehicle's factory speed limiter. When competing on the drag strip or a circuit track, the factory speed limiter can hinder a vehicle's performance. The HKS SLD is available in two versions: Type-1 is generally for vehicles equipped with a manual transmission and Type-2 is generally for vehicles with automatic transmissions.Features:Speed Limiter DefencerEliminate Factory Set Speed LimiterFor Manual and Automatic TransmissionFitmen...
  
 HKS Speed Limit Defencer VAC Type Z Nissan 370Z 09-15 

Model Number: 45002-AN007   View Price

The HKS SLD is an electronic device designed to eliminate a vehicle's factory speed limiter. When competing on the drag strip or a circuit track, the factory speed limiter can hinder a vehicle's performance. The HKS SLD is available in two versions: Type-1 is generally for vehicles equipped with a manual transmission and Type-2 is generally for vehicles with automatic transmissions.Features:Speed Limiter DefencerEliminate Factory Set Speed LimiterVAC Type ZFor Vehicles with SynchroRev Cont...
  
 HKS Speed Limit Defencer VAC Type GT-R Nissan R35 GTR 09-15 

Model Number: 45002-AN008   View Price

The HKS SLD is an electronic device designed to eliminate a vehicle's factory speed limiter. When competing on the drag strip or a circuit track, the factory speed limiter can hinder a vehicle's performance. The HKS SLD is available in two versions: Type-1 is generally for vehicles equipped with a manual transmission and Type-2 is generally for vehicles with automatic transmissions.Features:Speed Limiter DefencerEliminate Factory Set Speed LimiterVAC Type GTRFitment:Nissan R35 GTR 2009-201...
  
 HKS Speed Limit Defencer VAC T-607 Lexus IS250 06-13 

Model Number: 45002-AT007   View Price

The HKS SLD is an electronic device designed to eliminate a vehicle's factory speed limiter. When competing on the drag strip or a circuit track, the factory speed limiter can hinder a vehicle's performance. The HKS SLD is available in two versions: Type-1 is generally for vehicles equipped with a manual transmission and Type-2 is generally for vehicles with automatic transmissions.Features:Speed Limiter DefencerEliminate Factory Set Speed LimiterVAC Type 607Fitment:Lexus IS250 2006-2013No...
  
 HKS Fuel Cut Defencer FCD Mitsubishi Starion 83-87 

Model Number: 4501-RA002   View Price

The HKS FCD is an electronic device developed to properly raise the factory fuel cut level on factory turbocharged vehicles. As modifications are made to optimize engine Performnce, the factory fuel cut is often triggered by higher boost levels which activate a fuel delivery cut-off as a failsafe procedure. Symptoms of fuel cut are hesitation, bogging, and/or illumination of diagnostic indicators.The electronic signal from the FCD will raise the fuel cut level to accommodate for the additional b...
  
 HKS Fuel Cut Defencer FCD Mazda RX-7 FC3S 87-92 

Model Number: 4501-RA002   View Price

The HKS FCD is an electronic device developed to properly raise the factory fuel cut level on factory turbocharged vehicles. As modifications are made to optimize engine Performnce, the factory fuel cut is often triggered by higher boost levels which activate a fuel delivery cut-off as a failsafe procedure. Symptoms of fuel cut are hesitation, bogging, and/or illumination of diagnostic indicators.The electronic signal from the FCD will raise the fuel cut level to accommodate for the additional b...
  
 HKS Fuel Cut Defencer FCD Toyota Celica 3S-GTE 88-93 

Model Number: 4501-RA002   View Price

The HKS FCD is an electronic device developed to properly raise the factory fuel cut level on factory turbocharged vehicles. As modifications are made to optimize engine Performnce, the factory fuel cut is often triggered by higher boost levels which activate a fuel delivery cut-off as a failsafe procedure. Symptoms of fuel cut are hesitation, bogging, and/or illumination of diagnostic indicators.The electronic signal from the FCD will raise the fuel cut level to accommodate for the additional b...
  
 HKS Fuel Cut Defencer FCD Toyota MR2 3S-GTE 91-95 

Model Number: 4501-RA002   View Price

The HKS FCD is an electronic device developed to properly raise the factory fuel cut level on factory turbocharged vehicles. As modifications are made to optimize engine Performnce, the factory fuel cut is often triggered by higher boost levels which activate a fuel delivery cut-off as a failsafe procedure. Symptoms of fuel cut are hesitation, bogging, and/or illumination of diagnostic indicators.The electronic signal from the FCD will raise the fuel cut level to accommodate for the additional b...
  
 HKS Fuel Cut Defencer FCD Mazda RX-7 FD3S 93-95 

Model Number: 4501-RA002   View Price

The HKS FCD is an electronic device developed to properly raise the factory fuel cut level on factory turbocharged vehicles. As modifications are made to optimize engine Performnce, the factory fuel cut is often triggered by higher boost levels which activate a fuel delivery cut-off as a failsafe procedure. Symptoms of fuel cut are hesitation, bogging, and/or illumination of diagnostic indicators.The electronic signal from the FCD will raise the fuel cut level to accommodate for the additional b...
  
 HKS Pro Electronic Idling Stabilizer Subaru Impreza 93-96 

Model Number: 4605-RF001   View Price

The HKS EIDS has been developed to buffer dramatic airflow meter signal fluctuations. By buffering these fluctuations the EIDS prevents engine stalling or stumbling associated with sudden imbalances in air/fuel ratio of airflow meter-equipped vehicles that utilize atmosphere venting blow-off valves.Features:Prevents Engine StallingBuffer Dramatic Airflow Meter Signal FluctationsCompatible with HKS F-CON V Pro Ver. 3 & 4Fitment:Subaru Impreza 1993-1996Notes:Pictures for marketing purposes only, a...
  
 HKS Pro Electronic Idling Stabilizer Nissan 240SX Silvia S13 SR20DET 89-94 

Model Number: 4605-RN002   View Price

The HKS EIDS has been developed to buffer dramatic airflow meter signal fluctuations. By buffering these fluctuations the EIDS prevents engine stalling or stumbling associated with sudden imbalances in air/fuel ratio of airflow meter-equipped vehicles that utilize atmosphere venting blow-off valves.Features:Prevents Engine StallingBuffer Dramatic Airflow Meter Signal FluctationsCompatible with HKS F-CON V Pro Ver. 3 & 4Fitment:Nissan 240SX Silvia S13 SR20DET 1989-1994Notes:Pictures for marketing...
  
 HKS Pro Electronic Idling Stabilizer Nissan 240SX Silvia S14 SR20DET 95-98 

Model Number: 4605-RN002   View Price

The HKS EIDS has been developed to buffer dramatic airflow meter signal fluctuations. By buffering these fluctuations the EIDS prevents engine stalling or stumbling associated with sudden imbalances in air/fuel ratio of airflow meter-equipped vehicles that utilize atmosphere venting blow-off valves.Features:Prevents Engine StallingBuffer Dramatic Airflow Meter Signal FluctationsCompatible with HKS F-CON V Pro Ver. 3 & 4Fitment:Nissan 240SX Silvia S14 SR20DET 1995-1998Notes:Pictures for marketing...
  
 HKS Pro Electronic Idling Stabilizer Nissan 240SX Silvia S15 SR20DET 99-02 

Model Number: 4605-RN002   View Price

The HKS EIDS has been developed to buffer dramatic airflow meter signal fluctuations. By buffering these fluctuations the EIDS prevents engine stalling or stumbling associated with sudden imbalances in air/fuel ratio of airflow meter-equipped vehicles that utilize atmosphere venting blow-off valves.Features:Prevents Engine StallingBuffer Dramatic Airflow Meter Signal FluctationsCompatible with HKS F-CON V Pro Ver. 3 & 4Fitment:Nissan 240SX Silvia S15 SR20DET 1999-2002Notes:Pictures for marketing...
  
 HKS F-CON Harness Subaru Legacy EJ20 03-06 

Model Number: 42002-AF001   View Price

F-CON iS can control the latest advanced engines. Just connect to a stock ECU with a vehicle specified harness without modification. HKS "F-CON iS" is a piggy-back ECU for fuel and ignition management as well as new features. Functions for fuel and ignition controls are inherited from the previous model F-CON SZ. In addition to it, function to collect OBD II diagnosis data was added for correction of setting due to stock close-loop correction values when intake/exhaust parts are upgraded or boos...
  
 HKS F-CON Harness Mitsubishi EVO X 08-15 

Model Number: 42002-AM002   View Price

F-CON iS can control the latest advanced engines. Just connect to a stock ECU with a vehicle specified harness without modification. HKS "F-CON iS" is a piggy-back ECU for fuel and ignition management as well as new features. Functions for fuel and ignition controls are inherited from the previous model F-CON SZ. In addition to it, function to collect OBD II diagnosis data was added for correction of setting due to stock close-loop correction values when intake/exhaust parts are upgraded or boos...
  
 HKS F-CON Harness Nissan 350Z 03-07 

Model Number: 42002-AN005   View Price

F-CON iS can control the latest advanced engines. Just connect to a stock ECU with a vehicle specified harness without modification. HKS "F-CON iS" is a piggy-back ECU for fuel and ignition management as well as new features. Functions for fuel and ignition controls are inherited from the previous model F-CON SZ. In addition to it, function to collect OBD II diagnosis data was added for correction of setting due to stock close-loop correction values when intake/exhaust parts are upgraded or boos...
  
 HKS F-CON Harness Mazda RX-8 04-11 

Model Number: 42002-AZ001   View Price

F-CON iS can control the latest advanced engines. Just connect to a stock ECU with a vehicle specified harness without modification. HKS "F-CON iS" is a piggy-back ECU for fuel and ignition management as well as new features. Functions for fuel and ignition controls are inherited from the previous model F-CON SZ. In addition to it, function to collect OBD II diagnosis data was added for correction of setting due to stock close-loop correction values when intake/exhaust parts are upgraded or boos...
  
 HKS F-CON Harness Type FP5-7 Subaru Impreza WRX EJ205 00-07 

Model Number: 4202-RF008   View Price

F-CON iS can control the latest advanced engines. Just connect to a stock ECU with a vehicle specified harness without modification. HKS "F-CON iS" is a piggy-back ECU for fuel and ignition management as well as new features. Functions for fuel and ignition controls are inherited from the previous model F-CON SZ. In addition to it, function to collect OBD II diagnosis data was added for correction of setting due to stock close-loop correction values when intake/exhaust parts are upgraded or boos...
  
 HKS F-CON Harness Type FP5-7 Subaru Impreza WRX EJ207 00-07 

Model Number: 4202-RF008   View Price

F-CON iS can control the latest advanced engines. Just connect to a stock ECU with a vehicle specified harness without modification. HKS "F-CON iS" is a piggy-back ECU for fuel and ignition management as well as new features. Functions for fuel and ignition controls are inherited from the previous model F-CON SZ. In addition to it, function to collect OBD II diagnosis data was added for correction of setting due to stock close-loop correction values when intake/exhaust parts are upgraded or boos...
  
 HKS F-CON Harness Type FP5-7 Subaru Forester EJ20 02-04 

Model Number: 4202-RF008   View Price

F-CON iS can control the latest advanced engines. Just connect to a stock ECU with a vehicle specified harness without modification. HKS "F-CON iS" is a piggy-back ECU for fuel and ignition management as well as new features. Functions for fuel and ignition controls are inherited from the previous model F-CON SZ. In addition to it, function to collect OBD II diagnosis data was added for correction of setting due to stock close-loop correction values when intake/exhaust parts are upgraded or boos...
  
 HKS F-CON Harness Type FP5-7 Subaru Legacy EJ206 | EJ208 02-04 

Model Number: 4202-RF008   View Price

F-CON iS can control the latest advanced engines. Just connect to a stock ECU with a vehicle specified harness without modification. HKS "F-CON iS" is a piggy-back ECU for fuel and ignition management as well as new features. Functions for fuel and ignition controls are inherited from the previous model F-CON SZ. In addition to it, function to collect OBD II diagnosis data was added for correction of setting due to stock close-loop correction values when intake/exhaust parts are upgraded or boos...
  
 HKS F-CON Harness Type FP5-3 Honda S2000 AP1 00-03 

Model Number: 4202-RH007   View Price

F-CON iS can control the latest advanced engines. Just connect to a stock ECU with a vehicle specified harness without modification. HKS "F-CON iS" is a piggy-back ECU for fuel and ignition management as well as new features. Functions for fuel and ignition controls are inherited from the previous model F-CON SZ. In addition to it, function to collect OBD II diagnosis data was added for correction of setting due to stock close-loop correction values when intake/exhaust parts are upgraded or boos...
  
 HKS F-CON Harness Type MP5-2 Mitsubishi EVO XIII 03-05 

Model Number: 4202-RM009   View Price

F-CON iS can control the latest advanced engines. Just connect to a stock ECU with a vehicle specified harness without modification. HKS "F-CON iS" is a piggy-back ECU for fuel and ignition management as well as new features. Functions for fuel and ignition controls are inherited from the previous model F-CON SZ. In addition to it, function to collect OBD II diagnosis data was added for correction of setting due to stock close-loop correction values when intake/exhaust parts are upgraded or boos...
  
 HKS F-CON Harness Type NP5-1-1 Nissan R32 Skyline GTR RB26DETT 89-94 

Model Number: 4202-RN015   View Price

F-CON iS can control the latest advanced engines. Just connect to a stock ECU with a vehicle specified harness without modification. HKS "F-CON iS" is a piggy-back ECU for fuel and ignition management as well as new features. Functions for fuel and ignition controls are inherited from the previous model F-CON SZ. In addition to it, function to collect OBD II diagnosis data was added for correction of setting due to stock close-loop correction values when intake/exhaust parts are upgraded or boos...
  
 HKS F-CON Harness Type NP5-1-1 Nissan R33 Skyline GTR RB26DETT 95-98 

Model Number: 4202-RN015   View Price

F-CON iS can control the latest advanced engines. Just connect to a stock ECU with a vehicle specified harness without modification. HKS "F-CON iS" is a piggy-back ECU for fuel and ignition management as well as new features. Functions for fuel and ignition controls are inherited from the previous model F-CON SZ. In addition to it, function to collect OBD II diagnosis data was added for correction of setting due to stock close-loop correction values when intake/exhaust parts are upgraded or boos...
  
 HKS F-CON Harness Type NP5-2 Nissan R32 Skyline GTR RB26DETT 89-94 

Model Number: 4202-RN016   View Price

F-CON iS can control the latest advanced engines. Just connect to a stock ECU with a vehicle specified harness without modification. HKS "F-CON iS" is a piggy-back ECU for fuel and ignition management as well as new features. Functions for fuel and ignition controls are inherited from the previous model F-CON SZ. In addition to it, function to collect OBD II diagnosis data was added for correction of setting due to stock close-loop correction values when intake/exhaust parts are upgraded or boos...
  
 HKS F-CON Harness Type NP5-2 Nissan Z32 300ZX VG30DETT 90-96 

Model Number: 4202-RN016   View Price

F-CON iS can control the latest advanced engines. Just connect to a stock ECU with a vehicle specified harness without modification. HKS "F-CON iS" is a piggy-back ECU for fuel and ignition management as well as new features. Functions for fuel and ignition controls are inherited from the previous model F-CON SZ. In addition to it, function to collect OBD II diagnosis data was added for correction of setting due to stock close-loop correction values when intake/exhaust parts are upgraded or boos...
  
 HKS F-CON Harness Type NP5-2 Nissan R33 Skyline GTR RB26DETT 95-98 

Model Number: 4202-RN016   View Price

F-CON iS can control the latest advanced engines. Just connect to a stock ECU with a vehicle specified harness without modification. HKS "F-CON iS" is a piggy-back ECU for fuel and ignition management as well as new features. Functions for fuel and ignition controls are inherited from the previous model F-CON SZ. In addition to it, function to collect OBD II diagnosis data was added for correction of setting due to stock close-loop correction values when intake/exhaust parts are upgraded or boos...
  
 HKS F-CON Harness Type NP5-3 Nissan 240SX Silvia S14 SR20DET 95-98 

Model Number: 4202-RN017   View Price

F-CON iS can control the latest advanced engines. Just connect to a stock ECU with a vehicle specified harness without modification. HKS "F-CON iS" is a piggy-back ECU for fuel and ignition management as well as new features. Functions for fuel and ignition controls are inherited from the previous model F-CON SZ. In addition to it, function to collect OBD II diagnosis data was added for correction of setting due to stock close-loop correction values when intake/exhaust parts are upgraded or boos...
  
 HKS F-CON Harness Type NP5-5 Nissan 240SX Silvia S13 SR20DET 89-94 

Model Number: 4202-RN018   View Price

F-CON iS can control the latest advanced engines. Just connect to a stock ECU with a vehicle specified harness without modification. HKS "F-CON iS" is a piggy-back ECU for fuel and ignition management as well as new features. Functions for fuel and ignition controls are inherited from the previous model F-CON SZ. In addition to it, function to collect OBD II diagnosis data was added for correction of setting due to stock close-loop correction values when intake/exhaust parts are upgraded or boos...
  
 HKS F-CON Harness Type NP5-4 Nissan 240SX Silvia S14 SR20DET 95-98 

Model Number: 4202-RN020   View Price

F-CON iS can control the latest advanced engines. Just connect to a stock ECU with a vehicle specified harness without modification. HKS "F-CON iS" is a piggy-back ECU for fuel and ignition management as well as new features. Functions for fuel and ignition controls are inherited from the previous model F-CON SZ. In addition to it, function to collect OBD II diagnosis data was added for correction of setting due to stock close-loop correction values when intake/exhaust parts are upgraded or boos...
  
 HKS F-CON Harness Type NP5-4 Nissan 240SX Silvia S15 SR20DET 99-02 

Model Number: 4202-RN020   View Price

F-CON iS can control the latest advanced engines. Just connect to a stock ECU with a vehicle specified harness without modification. HKS "F-CON iS" is a piggy-back ECU for fuel and ignition management as well as new features. Functions for fuel and ignition controls are inherited from the previous model F-CON SZ. In addition to it, function to collect OBD II diagnosis data was added for correction of setting due to stock close-loop correction values when intake/exhaust parts are upgraded or boos...
  
 HKS F-CON Harness Type TP5-1 Toyota Supra MKIV 2JZ-GTE 93-98 

Model Number: 4202-RT022   View Price

F-CON iS can control the latest advanced engines. Just connect to a stock ECU with a vehicle specified harness without modification. HKS "F-CON iS" is a piggy-back ECU for fuel and ignition management as well as new features. Functions for fuel and ignition controls are inherited from the previous model F-CON SZ. In addition to it, function to collect OBD II diagnosis data was added for correction of setting due to stock close-loop correction values when intake/exhaust parts are upgraded or boos...
  
 HKS F-CON Harness Type TP5-4 Toyota Celica GT-Four 3S-GTE 94-99 

Model Number: 4202-RT025   View Price

F-CON iS can control the latest advanced engines. Just connect to a stock ECU with a vehicle specified harness without modification. HKS "F-CON iS" is a piggy-back ECU for fuel and ignition management as well as new features. Functions for fuel and ignition controls are inherited from the previous model F-CON SZ. In addition to it, function to collect OBD II diagnosis data was added for correction of setting due to stock close-loop correction values when intake/exhaust parts are upgraded or boos...
  
 HKS F-CON Harness Type TP5-4 Toyota MR2 3S-GTE 94-99 

Model Number: 4202-RT025   View Price

F-CON iS can control the latest advanced engines. Just connect to a stock ECU with a vehicle specified harness without modification. HKS "F-CON iS" is a piggy-back ECU for fuel and ignition management as well as new features. Functions for fuel and ignition controls are inherited from the previous model F-CON SZ. In addition to it, function to collect OBD II diagnosis data was added for correction of setting due to stock close-loop correction values when intake/exhaust parts are upgraded or boos...
  
 HKS F-CON Harness Type TP5-6 Toyota Supra MKIV 2JZ-GTE VVT-I 93-98 

Model Number: 4202-RT027   View Price

F-CON iS can control the latest advanced engines. Just connect to a stock ECU with a vehicle specified harness without modification. HKS "F-CON iS" is a piggy-back ECU for fuel and ignition management as well as new features. Functions for fuel and ignition controls are inherited from the previous model F-CON SZ. In addition to it, function to collect OBD II diagnosis data was added for correction of setting due to stock close-loop correction values when intake/exhaust parts are upgraded or boos...
  
 HKS F-CON Harness Type ZP5-1 Mazda RX-7 FD3S 93-02 

Model Number: 4202-RZ007   View Price

F-CON iS can control the latest advanced engines. Just connect to a stock ECU with a vehicle specified harness without modification. HKS "F-CON iS" is a piggy-back ECU for fuel and ignition management as well as new features. Functions for fuel and ignition controls are inherited from the previous model F-CON SZ. In addition to it, function to collect OBD II diagnosis data was added for correction of setting due to stock close-loop correction values when intake/exhaust parts are upgraded or boos...