Version 1.
Version 1.
Advanced BMW B58 tuner for power, customization, monitoring, and performance optimization.
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.
Visconti has created a true plug and play harness kit for Gen 2 B58 and S58 cars!
Increase of +126 Horsepower, and +127 Torque! Eliminate top speed limiter, Increased throttle response. W.2 Tunes are designed for vehicles with performance high-flow exhausts!
Increase of +101 Horsepower, and +102 Torque, Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications!
Increase power without sacrificing reliability
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
07-20-2026