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!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For JB4 systems produced 2017 and later. Please check board diagrams to properly identify your JB4 before ordering.
With the all-new Kies WiFi Enet Adapter, you can now use your favorite apps, wirelessly, from one convenient dongle!
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An advanced piggy-back engine controller that works simultaneously with the original ECU
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
A piggy back tuner that allows you to adjust throttle response for peak performance.
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A simple 30 minute install that will give you a huge increase in power! up to +44 HP & +73 lbs Torque!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
4440465
Mfg#:
77-46326
Ships in 2 Business Days
20% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$625.00
This product was last offered at the strikethrough price on 01-28-2026
Adds a high fuel pressure connection to the JB4 for S58 platforms, allowing direct control of fuel pressure and fuel trims
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
5425069
Mfg#:
JB4FPUS58
Ships on Jun 19, 2026
$175.00 USD
Free Shipping
on orders $49 and up
Lifetime Replacement
More About Performance Tunes & Software
If you've upgraded your car or just want a bit more power from your stock vehicle, performance engine software helps maximize your car's potential by letting it know just where the limits are. Improve your driving experience with upgraded performance engine software from our selection of elite software tuners.
Lifetime Replacement
