JB4 Tuner for Acura
SHIPPING - RETURNS - WARRANTY - CANCELLATION POLICY
*** Market Conditions after 2020 have changed the landscape of automotive parts. Although we try to stock 1000's of items in our multiple warehouse and use multiple distribution channels, having back-orders are unavoidable in today's market. If you are in need of a product quickly, we suggest email, message, or call us for availability so that we may explore your options.
Email: Sales@Speedzoneweb.com
Call: 407-846-8430
Text: 407-749-6314
Frequently Asked Questions
Gain up to 80whp / 100wtq on 3.0L and 50whp / 60wtq on 2.0L Turbo Acura Engines
The JB4 Acura tuner is a powerful plug & play performance tuning system designed for modern turbocharged Acura engines including the Integra Type S, TLX Type S, TLX 2.0T, MDX Type S, and RDX 2.0T. The JB4 connects to two easy-to-access sensors in the engine bay and works with your factory ECU to safely remap boost, timing, and fueling for significant horsepower gains and reduced turbo lag.
No ECU flash required and fully compatible with locked 🔒 ECUs.
Installation is extremely discrete and unlike traditional ECU flash tuning the JB4 can be removed quickly without leaving a trace. Your vehicle’s factory ECU never detects the additional boost or power levels. Fuel economy during normal driving remains unchanged and the JB4 is compatible with all factory driving modes.
The JB4 includes a plug & play OBDII CANbus connection allowing it to read critical engine data directly from the ECU in real time including pedal position, throttle position, ignition timing, fuel trims, air/fuel ratio, engine knock, and more. Other tuners without CANbus integration cannot monitor or adjust tuning based on this critical engine data.
Using this advanced data input the JB4 Acura performance tuner delivers huge power gains with smooth and reliable power delivery.
The JB4 also includes multiple performance maps, smoother partial throttle tuning, additional engine safety systems such as lean protection and overboost protection, advanced logging capability, boost by gear control for improved traction, the ability to read and delete fault codes, and ongoing improvements through free firmware updates.
Wirelessly Connect to your JB4
Add the optional JB4 PRO Bluetooth adapter to connect the JB4 tuner to your iOS or Android smartphone. The JB4PRO mobile app allows you to monitor engine data, change performance maps, record data logs, and update firmware as new features and more powerful maps are released.
The JB4PRO app provides a clean user interface with built-in help menus and advanced data logging tools that can estimate performance and help identify tuning issues.
For more information about the JB4PRO smartphone tuning app click here.
JB4 Features & Benefits
- Power gains up to 80whp / 100wtq on Acura 3.0T engines
- Up to 50whp / 60wtq gains on Acura 2.0T engines
- Improves 0-60 times and quarter mile performance
- Preloaded with custom JB4 Acura tuning software and multiple maps
- Ethanol (E85) compatible performance maps
- Read and delete fault codes directly from the app
- View and record up to 40 engine parameters in real time
- Boost-by-gear control for improved traction
- Free JB4PRO smartphone app for tuning and data logging
- CANbus OBDII integration for advanced tuning features
- Smooth OEM-like drivability and power delivery
- Compatible with all factory driving modes
- Fuel economy unchanged during normal driving
- 91 octane fuel or better recommended for performance maps
- Not VIN locked and can be removed and resold
- Includes rugged JB4 billet aluminum enclosure
- Made in the USA
- 5 year warranty
Vehicle Fitment
Acura
- 2024+ Acura Integra Type S 2.0L Turbo
- 2023+ Acura Integra A-Spec 1.5L Turbo
- 2021+ Acura TLX Type S 3.0L Turbo
- 2021+ Acura MDX Type S 3.0L Turbo
- 2021+ Acura TLX 2.0L Turbo
- 2019+ Acura RDX 2.0L Turbo
What is a JB4?
The JB4 is a plug & play performance tuner for turbocharged vehicles. The JB4 connects between engine sensors and the vehicle’s ECU allowing it to safely manipulate boost, fuel delivery, and ignition timing for significant power gains.
Unlike basic tuning devices, the JB4 integrates with CANbus, supports advanced engine safety monitoring, smartphone connectivity, ethanol tuning, and continuous firmware updates that add features and performance improvements over time.
The JB4 system is not VIN locked and can be removed and transferred to another vehicle or resold later. The JB4 has been the industry leader in plug & play turbocharged tuning for more than a decade and is used by enthusiasts in over 67 countries worldwide.
Is the JB4 a real tune?
Yes. The JB4 actively adjusts boost, ignition timing, air fuel ratios, and fuel trims using real-time engine data through its CANbus connection. This allows the JB4 to deliver performance gains similar to ECU flash tuning while maintaining factory safety systems and without permanently modifying the ECU.
Acura 1.5L and 2.0L Install Guide
Acura 3.0L Install Guide
2021 Acura TLX Type S – ~93 octane – JB4 Map2 Dyno Results
Our History
For 26 years Speedzone Performance LLC has been providing aftermarket car parts to Central Floridians and 1000's of customers online. What makes us different than all the other places online? We have 3 actual brick and mortar locations where were serve customers daily and find new ways to provide support and assistance to the automotive community at large. From our in house SPDZ1 Brand, to our constantly growing in stock inventory, we strive to make our customer service and ease of purchase stand out from the rest! We are also one of the largest automotive part financing providers anywhere in the United States, and continue to provide more options for our customers every year. We love what we do, and it shows in every product we sell and every new customer who becomes a part of our Speedzone Family.