Discover our selection of aftermarket car parts across multiple categories. From wheels and tires to suspension, performance upgrades, and exterior and interior enhancements, find everything you need to take your 1999 Buick Regal GS to the next level.
What is the Bolt Pattern (PCD) for a 1999 Buick Regal GS?
5x115
What is the Center Bore / Hub Bore on a 1999 Buick Regal GS?
70.3mm
Does the 1999 Buick Regal GS use Lug Nuts or Lug Bolts?
Lug Nuts
What is the Thread Size on a 1999 Buick Regal GS?
M12x1.5
What mods are other 1999 Buick Regal GS owners running?
Check out our Buick Regal Build Threads to see real-world examples of how other enthusiasts are customizing their cars. From wheels and tires to performance upgrades.