9 Best Genesis Turbo Jb4 Performance Tuner of December 2025

• Keep your vehicle in V8 mode! Disable 4 cylinder mode on all GM Active Fuel Management Vehicles.
• Installs in seconds! Plugs into diagnostic port with no tools needed.
• Does not reprogram factory ECU. Leaves no trace.
• Full power all the time. Increased throttle response and more consistent power delivery across the entire power band.
• Best for high load scenarios, such as towing, off-road, icy or snowy conditions or high speed commuting.

Range Technology

• Small product, great function, make you get enough power while driving, keep V8.
• Simple installation, manual included, plug and play.
• Compatible with GMC BUICK CHEVROLET and other models.
• Note: keep V8 may cause excessive water temperature in some car.
• Will not modify your car's program, keep your car in factory ECU.

GTMOTOR

• 1.Replacement for Range Technology AFM Disable Device RA003.
• 2. Keep the vehicle in V8 or V6 mode, easy to operate, just plug in the diagnostic port
• 3. The product will not reprogram the factory ECU, so that the car is always in full cylinder mode
• 4. After the device is plugged into the port, four lights will flash in sequence, and only one light will be on when it is stable. If you do not use it for a long time, please unplug the device to avoid loss of equipment life
• 5. Please confirm whether your model is suitable before buying

salangid

• MORE CODES: To understand the problem with your vehicle you need the complete picture. With an up-to-date modern scan tool, you scan deeper to read, understand, and clear more codes. Access information normally only available to professional mechanics on their most expensive scan tools.
• REAL FIXES: Get unlimited vehicle specific Repair Reports, generated from our database of millions of fixes verified by Professional Automotive Technicians. Save time and money.
• NO CORDS: All the capabilities of an expensive scan tool (extended vehicle coverage, live data, etc.) combined with the power and convenience of your smartphone or tablet. No cords, no subscriptions, and regular free updates.
• LIVE DATA: View live data and monitor your vehicle’s health in real time. Configure the data sources, customize your view with various displays and colours, and log and export live data as a file.
• BlueDriver is proudly American owned and is the OBD2 Diagnostic Scan Tool trusted by professional mechanics and developed and supported by Professional Engineers.

BlueDriver

• Turn your iPhone, Android device, or Windows PC into a professional-grade diagnostic scan tool
• Recommended adapter for FORScan, Torque, BimmerCode, Dashcommand, AlfaOBD, Carista and many more
• Enhanced OEM support for Ford, GM, Mazda, Nissan/Infinity, Toyota/Lexus/Scion, Honda, Hyundai, Kia
• Clear Check Engine Light and get more live parameters (ABS, SRS, TPMS, etc) than any other scanner
• Over-voltage and battery drain protection, firmware updates

OBD Solutions

• VEHICLE DATA OVERLOAD. With a HUGE Backlit display, the SCT X4 Power Flash makes it EASY to read the Real Time Vehicle Data, view popular sensor data such as EGT, Air / Fuel Ratio or any other 0-5 Volt source!
• Big Power. Small Package The X4 Power Flash arrives Pre-Loaded with DYNO Proven tune files that INCREASE HORSEPOWER and TORQUE
• Custom Tunes. Lots of them. Stores up to 10 custom tune files created by your local SCT Custom Tuning Dealer.
• Built-In Wifi for easy updates, Data Logging, Easy Restoration Back to Stock, Holds up to 10 Custom Tunes, Installs Quickly & Easily, USB Interface Cable Included, Clearing DTCs, Dual Analog Inputs, Full Color Backlit LCD Display, Increases Horsepower & Torque!, Most Popular Vehicles Supported, User Adjustable Vehicle Parameters
• WHAT YOU CAN ADJUST - Axle Ratio, RPM Based Spark, Speed Limiter, Traction Control, Idle Adjust, Rev Limiter, Tire Size

Tuner

• Keep your vehicle in V8 mode! Disable 4-cylinder mode on all GM active fuel management vehicles. Full Power all the time.
• Plugs into diagnostic port with no tools needed. Simply plug into your onboard OBD-II port and it instantly begins working to eliminate the AFM system.
• Does not reprogram factory ECU. Leaves no trace. Unplug it to return to factory settings.
• Please disconnect your battery before installing.
• Power to the people. Increased throttle response and more consistent power delivery across the entire power band.

Qzucar

• 【Vehicle CEL Doctor】The NT301 obd2 scanner enables you to read DTCs, locate bad O2 sensors, access to emissions readiness status, turn off CEL(check engine light) or MIL, reset monitor, read live data and retrieve VIN of your vehicle.
• 【Accuracy & Streams】Live data graphing and logging. Accurately read error codes for most Worldwide cars, SUVs, light trucks and 12V diesels equipped with Obd2. Graphing live vehicle sensors data allows you to focus on any suspicious data and trend.
• 【Worthy to Own】Recommended by Mechanic Scotty Kilmer on Youtube. Codes analysis and Printer compatible. Unique PATENTED design, 2.8" color screen, Free Lifetime Update and 1-year seller assurance with EXCLUSIVE tech and service team.
• 【Smog Check Helper】Read/Erase and I/M readiness hotkeys make it easy to use the car computer reader right out of the package. Red-Yellow-Green Leds and build-in speaker indicate the readiness status for confident emissions test.
• 【Home Necessity】Open to global customers. No battery required, NT301 obd scanner is charged directly from the 16pin DLC in your vehicle. It is recommended as a necessity in your toolbox and one of the best gifts for Home and Autoshop Mechanics.
• 【Please Note】Dear customer, if you are not pleased with your NT301 and choose to return it, please kindly mark it unsellable to avoid an used one is resold again to other customers. Appreciate very much!
• 【Warm Tips】NT301 car scanner can be used directly with no need for registration or update, as it is already the latest version. Your Foxwell's screen is with a tightly-fitting screen protector. If any scratches are found, just tear off the screen protector from the upper left or upper right corner. :)

FOXWELL

• Classic design, fast scan and erase trouble codes, even a beginner can use it read the error code, find out what the problem is and perhaps fix it. Save money and time. It can not read and erase ABS, SRS(Airbag), and other systems fault codes.
• Works on MOST 1996 US-Based, 2000 EU-Based and Asian cars, and newer OBD II & CAN domestic or import vehicles. Supports English, German, French, Spanish, Finnish, Dutch, Russian and Portuguese.
• Easily determines the cause of the check engine light. I/M monitor readiness test, turn off the MIL (check engine light) as well as view freeze frame data. Read hard (memory) / pending (intermittent) and historic codes and show definitions.
• The AD310 scanner is well built with a large LCD display (128 x 64 pixel) that has white backlight and contrast adjustment, indicates test results directly. No need any Batteries or Charger, gets the power directly from the OBDII Data Link Connector in your vehicle.
• It's equipped with a 2. 5 feet long cable and made of a very thick flexible insulator. There are 4 buttons on AD310. The Up and Down button for scrolling the menu, the Enter and Exit button allow for navigation back and entering menu.

ANCEL