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The JB4 tuner installs between your car's sensors and its DME/ECU (computer) and manipulates vehicle performance through these connections making your vehicle much faster
giving the illusion of a lower and more aggressive stance
Fits pre-facelift and facelift
Upgrading your flimsy OEM S58 charge pipe to FTP's aluminium version will prevent charge pipe failure
Genuine BMW M3/M4/M5/M8 Front Brake Pad Set (G80/G82/F90/F92) F32 | F33 | F36 (2013+) EXTERIOR STYLING The JB4 tuner installs betweenGenuine BMW Front Brake Pads for the G8X M3 & M4, as well as the F9X M5 & M8. With a genuine BMW part, be assured you are getting the finest quality, meeting BMW's design standards for fitment, performance & longevity. These front pads will assist in giving your performance BMW exceptional stopping power, with the peace of mind you get with buying a genuine part. The product you receive will always be the very latest design, incorporating any updates