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Latest design oversized MHI turbine wheel with "slim nose"
Map1: 3psi over stock added (91 octane)
The S55 that powers the 2015-2020 BMW F8X M3
the JB4 system is not VIN-locked to your vehicle and can quickly be removed and swapped between cars or resold at a later time
BMW Colored M Buttons (E & F Series) Chassis:E8X E9X Latest design oversized MHI turbineWhether you have an existing M button or not, this small upgrade changes the entire look of your cockpit. If you don't have an M button on your steering wheel, you probably have a button you've never used before. So, replace it anyways! Fitment guaranteed Needs to be sport, M Sport, or M3 wheel. Edges have been shaved to ensure proper fitment, so that it will not stick.
