Pay in 4 interest-free payments of $74.88 Learn more
Ships within 48 hours · Estimated delivery Aug 12 - Aug 17
Please have a professional shop assist with install
Vacuum exhaust valves with key fob remote system
5″ Competition HD Intercoolers are comprised of an incredibly dense fin pack both internally and externally
• Quick Plug & Play Installation
BMS F8X S55 JB4 Tuner Chassis_E39 Please have a professional shopGains are up to 80whp 100tq on pump gas and up to 120whp 140wtq on higher octane or E85 mixtures without the risks of flashing! The ultimate tuner for your S55 powered vehicle, the JB4 allows you to go from factory stock to full race, and everywhere in between, with the push of a button on your steering wheel or phone. The JB4 installs and removes easily and includes many unique features not found in any other tune including user adjustable 1st and
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