Pay in 4 interest-free payments of $124.88 Learn more
Ships within 48 hours · Estimated delivery Aug 14 - Aug 19
It not only enhances performance but also provides a superior sound experience
75 v2 (6 liters per minute)Our Stage 3
Individually Leak and Pressure Tested
Designed for a perfect fit
-Professional Installation recommended
S68 JB4 Tuner for 2025+ G90 / G99 BMW M5 bmw m3 single mid pipe It not only enhances performanceGains are 93whp on pump gas and up to 135whp on higher octane or E85 mixtures. The ultimate tune for your 4. 4L S68 powered G90 BMW M5. The JB4 allows you to go from factory stock to full race and everywhere in between. The JB4 installs and removes easily and includes many unique features not found in any other tune, including user adjustable 1st and 2nd gear boost limiting, smartphone integration, electronic wastegate control, ethanol fuel support,
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