Suspension parts: 2003 Boxster S

[KRAM36]

Originally Posted by Spinnaker

The sticker on the under side of the front hood will list what options originally came on the car.
391 -- 17" wheels Boxster design
396 -- 17" wheels Boxster design
413 -- 18" Turbo-look wheels
If it had the standard 16" wheels, there might not be anything listed. Since you have an S, it probably came with 17" or 18" wheels since the larger front rotors of the S require at least the 17" wheels.

TeamOxford posted this link for option codes.

Porsche Option Codes List: The Grandmother of all Porsche Options List. Decode your Options

I have the number 239, which on this list shows it to be a 18" alloy wheels option and also the number 411, which on this list shows it to be a 18" Carrera wheels option . Just as I suspected and someone swapped these older 911 17" wheels out for them. Grrrr!

[Topless]

Originally Posted by KRAM36

TeamOxford posted this link for option codes.

Porsche Option Codes List: The Grandmother of all Porsche Options List. Decode your Options

I have the number 239, which on this list shows it to be a 18" alloy wheels option and also the number 411, which on this list shows it to be a 18" Carrera wheels option . Just as I suspected and someone swapped these older 911 17" wheels out for them. Grrrr!

Your wheels look like aftermarket Cup I wheels that were popular on the 964 and a direct fit for the Boxster. Decent wheels that are easy to clean but may bend easily if you hit a pothole. (don't ask me how I know)