Wirelessly connect your JB4 to your phone!
For JB4 systems produced 2017 and later. Please check board diagrams to properly identify your JB4 before ordering.
Alter parameters and fine-tune — wirelessly!
For use with N54 JB4 systems and any JB4 manufactured prior to 2017. Please check board diagrams to properly identify your JB4 before ordering.
Increase of +95 Horsepower, and +188 Torque! Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications!
This software is only compatible with Windows PC / Laptop.
Max gains of up to +50 HP and +47 lb-ft TRQ (Crank); +46 HP and +46 lb-ft TRQ (Wheel)
10X Entries For Our G87 M2 Sweepstakes! Works with 2012-2019 model years
Brand:
ES#:
4674679
Mfg#:
D440-0133
Ships in 10 Business Days
ON SALE!
SAVE 10%
$649.99
This product was last offered at the strikethrough price on 08-18-2025
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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Lifetime Replacement
