20 piece ACER Racing Titanium Lug Bolt set for BMW M4 

M14x1.25 thread and 48mm long. Also available in Black Titanium for $89 extra. Message us if you want the black version.

These are a direct replacement but in the highest grade titanium (Grade 5 6AL4V Titanium)

Manufactured from aerospace grade 6AL4V Titanium, these titanium lug bolts will not corrode or rust and offer 50% weight savings over steel lug bolts while giving a very sporty and aggressive look.