You need to do some research in your case.
The problem with LED bulbs on cars is that they don't generally have the same light pattern as standard halogen or xenon bulbs and replacing them may give you really bad illumination and/or could affect oncoming traffic which may make your car illegal at night.
Find out if anyone has done it (from xenon to LED) and what was their results.
It's easier for halogen to LED because the diodes are usually close to the filament's position.
Happy Boxstering,
Pedro
Pedro Bonilla1998 Boxster 986 - 311,000+ miles:
[www.PedrosGarage.com]
PCA National Club Racing Scrutineer - PCA National HPDE Instructor - PCA Technical Committee (Boxster/Cayman)
Racecar spelled backwards is Racecar
"Racing is life. Anything before or after is just waiting" ... Steve McQueen as Michael Delaney in "LeMans"
"If you wait, all that happens is that you get older"... Mario Andretti
"Being second is to be the first of the ones who lose" ... Ayrton Senna