2003 Honda Civic Si Aftermarket Car Parts

Information about the 2003 Honda Civic Si

What generation is the 2003 Honda Civic Si?

What is the Bolt Pattern (PCD) for a 2003 Honda Civic Si?

4x100

What size wheels fit a 2003 Honda Civic Si?

The 2003 Honda Civic Si fits 14 to 18 inch wheels that are 5 to 9 inches wide with an offset between +0 and +45, on a 4x100 bolt pattern. Our top fitment recommendation is 16x7 +40 with 205/45R16 tires for a flush fit on stock suspension.

What size tires come on a 2003 Honda Civic Si?

The stock tire size on the 2003 Honda Civic Si is 195/60R15.

What is the Center Bore / Hub Bore on a 2003 Honda Civic Si?

56.1mm

Does the 2003 Honda Civic Si use Lug Nuts or Lug Bolts?

Lug Nuts

What is the Thread Size on a 2003 Honda Civic Si?

M12x1.5

What mods are other 2003 Honda Civic Si owners running?

Check out our Honda Civic Build Threads to see real-world examples of how other enthusiasts are customizing their cars. From wheels and tires to performance upgrades.