The latest and greatest Wireless connection method for your BMW F and G series vehicles and the 2020+ Toyota Supra
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The latest and greatest Wireless connection method for your BMW F and G series vehicles and the 2020+ Toyota Supra
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Wirelessly connect your JB4 to your phone!
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For JB4 systems produced 2017 and later. Please check board diagrams to properly identify your JB4 before ordering.
Unlock additional power and performance with the JB4 tuner
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Quick and simple add-on for increased power!
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Plug & play power — gain up to 130WHP on a stock vehicle without the risks of flashing!
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For models with the Gen3 engines only (B48N/B48P/B48TU2 & B58N/B58TU2)
The ultimate OBD adapter designed to deliver exceptional speed, maximum connection stability, and great performance for flashing, coding, and live monitoring
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Quick and reliable power from a name you know and trust!
Call In Or Chat For Best Price! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
05-10-2026
Replacement JB4 OBDII cable suitable for use in all applications where the JB4 attaches to the OBDII port under the dash.
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Max gains of up to +26 HP and +36 lb-ft TRQ (Crank); +23 HP and +33 lb-ft TRQ (Wheel)
Call In Or Chat For Best Price! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
05-10-2026
Version 1.
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Unlock additional power and performance with the JB4 tuner
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Attaches to the JB4 allowing it to directly control both traditional port injection kits and WMI port injection kits.
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A piggy back tuner that allows you to adjust throttle response for peak performance.
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Replacement JB4 OBDII cable suitable for use in all applications where the JB4 attaches to the OBDII port under the dash. Includes JB4 side repair harness molex pigtail.
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Next-Gen Power Delivery with OEM-Level Integration - up to + 35 HP / + 45 TQ
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes!
For early models with the Gen2 B46 engine (B46D / B46TU)
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
05-21-2026
Next-Gen Power Delivery with OEM-Level Integration - up to +45 HP / +40 TQ
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes!
For late models with the Gen3 B48 engine (B48P / B48TU2)
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
05-21-2026