S58 JB4 Tuner for BMW F97 X3M & F98 X4M - Burger Tuning Optional Device:JB4 Map 8: VALET/Low Boost Map

Map 8: VALET/Low Boost Map

Transform your 2014-2016 Silverado 1500

particularly at mid-range RPMs where this intake shows significant gains

This is a complete plug & play kit to install a flex fuel kit in your S63 equipped BMW in about 30 minutes

650i — N63 / N63TU 4

S58 JB4 Tuner for BMW F97 X3M & F98 X4M - Burger Tuning Optional Device:JB4 Map 8: VALET/Low Boost MapGains are 80whp 100wtq on pump gas and up to 150whp 175tq on higher octane or E85 mixtures. The ultimate tune for your S58 powered F97 X3M & F98 X4M, 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