DBA 16-18 Ford Focus RS Front 4000 Series Drilled & Slotted Rotor - DBA42968XS fits_2015`BMW`M4 For racing it is beneficial

For racing it is beneficial to reduce the amount of bump steer to give a more positive feel - sharper handling - reduced understeer

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Camber Bolts 15mm

what more could you want for your BMW

Finishing off this exhaust system is a 7" diameter polished 304 stainless steel clamp-on exhaust tip

DBA 16-18 Ford Focus RS Front 4000 Series Drilled & Slotted Rotor - DBA42968XS fits_2015`BMW`M4 For racing it is beneficial4000 SERIES XS Gold provides all the benefits of 4000 Series, with a premium non directional cross drilled and slotted design allowing more brake pad friction dust and gases to escape, plus an attractive gold finish on the rotor hub. Downloads & Resources Installation Instructions (PDF)