I don't know why they are having this problem. I remember that when
I purchased my two sets from 4AMotor on the BMW Performance CF Splitters, they came perfect, flawless. Compared them side to side with OEM from BMW and you couldn't tell a difference.
They should take the same quality they had on those, to make this diffuser flawless.
BMW M3 E92 2011 ZCP 6MT
- Upgrades:MS Stage 2 Intake + Turner Test Pipes + BPM Stage 2 Tune with Coding; Fox Red Novillo/Carbon Leather/Competition Package/Premium Package 2/Convenience Package /Enhanced Premium Sound/Satelite Radio