It is much cheaper for me to buy a car off the lot then order one. Plus its quicker. The car on the lot has everything i want, except for the bi-xenon lights, can they be added on after or should i wait and order. If i wait and order then i would get the rain senors also.
I believe this link should help…
LINK
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zornet
Porsche rain sensors can be retrofitted, xenon lights can, but not as perfectly. Xtralights 6000k kit is the way to go, and I've used xenon depot's 4300k kit, which was great; but causes an error because of unmatching resistance; I couldn't ever figure out how to get the resistors made just right.
At the moment I'm running the standard halogens, and truly they are not that bad. But I will change to the xtralights 6000k xetronic kit with the resistors built in once I get over shelling out for a new exhaust, intake, and short shifter.
I say save some money, buy off the lot.
- Suneet
Out of curiosity I see everyone is saying "xenon" upgrade as opposed to "bi-xenon". Is it truly a bi-xenon upgrade we're talking about here. I already have the bi-xenons but just wanted to bring this up.
Option P74 is called "Xenon Headlamp Package at $1090 list, $927 dealer cost. The description reads: Includes bi-Xenon lights with dynamic leveling and headlight washers.
Porsche's xenon lights, like several other makers, is not a true bi-xenon system. Each light assembly uses just 1 xenon bulb with a screen blocking the light from the high beam reflector when using just the low beam. For the high beam the screen moves out of the way.
A halogen bulb is used as the light source to "flash" the high beams.
It is relatively easy & inexpensive to retro-fit a xenon bulb (w/igniter & ballast) to replace the halogen bulb in the projector low beam. It is much more difficult & expensive to replicate the bi-xenon, self leveling oem system. Aftermarket kits range from very good to absolute crap. Most use D2S bulbs that have been disassembled & remounted to fit halogen fittings w/predictable quality variations effecting bulb life, efficiency, & performance. Plus, AFAIK kits with 1 piece combined igniter & ballast will require drilling or cutting the Porsche light assembly. Research before you buy. The motto for most xenon sellers seems to be: c
aveat emptor
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I personally wouldn't buy a car without Xenons. I believe it is fairly pricey to retrofit the OEM kit to the Cayman, but it can be done.
I think the Xenons are a bit expensive. Any night driving is visually challenged anyway, so although better, still not perfect so to me not worth it, either from a money standpoint or a waiting standpoint.
Rain sensors I have in my car and they are not that great. Compared to the rain sensing system on my Lexus GS 430 (which works great) they are fairly crude. However, the option seems to be bundled with the self dimming mirrors, which I like a lot, especially the side mirrors. You can always deflect the rear view, but the side mirror dimming is a godsend.
For me, the biggest issue is waiting. I would compromise a little and get the car in the dealer stock. Ordering and waiting 2 or 3 months would drive me crazy.
This question was brought up some time ago. I replied by saying that I had asked my dealership about adding on xenon headlights and they gave me a rough estimate of $4k up. Better off getting a car with xenons than retrofitting afterwards.
