Have a look at the following URL attached. It is complete and very easy to follow.
http://www.bombaydigital.com/boxster/projects/headlamp/
My husband and I took our boxster to a local repair shop. They wanted to charge us $800 to replace the light. Told us the entire light assembly had to be replaced to change the bulb. I told my husband not to do it that I would look on eBay for the part. Thankfully, I did a web query and asked how to change a lightbulb in a Porsche boxster and found this site. I'm totally stunned that my local repair shop wanted to gouge us so much.
The 2003 Porsche Boxster has 24 valves.
The 2003 Porsche Boxster has a 5-speed manual.
The 2003 Porsche Boxster is a gas-powered vehicle.
The 2003 Porsche Boxster has a flat 6 engine.
The 2003 Porsche Boxster has a drag coefficient of 0.31 Cd.
The 2003 Porsche Boxster's turning circle is 35.8 ft..
The 2003 Porsche Boxster has double overhead cam (DOHC).
The 2003 Porsche Boxster is 14 ft. 2.1 in. (170.1 in.) long.
The curb weight of the 2003 Porsche Boxster is 2811 lbs..
The height of the 2003 Porsche Boxster is 4 ft. 2.8 in. (50.8 in.).
The 2003 Porsche Boxster runs on premium unleaded (required).
The 2003 Porsche Boxster has a 2.7 L base engine size.