CP-Carrillo Automotive Piston, Each, Cyl: 1, Material ID: 200 0DETF BMW M3/M4 (F80/F82) Only compatible with OEM LED

Only compatible with OEM LED DRL headlights

Will these fit my current valve stems

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Will these need paint before installation

CP-Carrillo Automotive Piston, Each, Cyl: 1, Material ID: 200 0DETF BMW M3/M4 (F80/F82) Only compatible with OEM LEDSmall Block Chevy LS1 Piston SBC LS1 Flat Top & Dish Designed on X style forging to clear reluctor wheel Fit LS1, LS2 and LS6 heads Designed for shorter wrist pins Pinfitting included at no cost Chamfered pins and wire locks included Accumulator and anti detonation grooves included Designed for back cut rings Double pin oilers, force fed from oil ring Pick lock grooves for easy lock removal Custom skirt cam and barrel shapes Supplied with Wire Locks