Jump to content

The RennTech.org community is Member supported!  Please consider an ANNUAL donation to help keep this site operating.
Click here to Donate

Welcome to RennTech.org Community, Guest

There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.

Here are some of the features available - once you register at RennTech.org

  • View Classified Ads
  • DIY Tutorials
  • Porsche TSB Listings (limited)
  • VIN Decoder
  • Special Offers
  • OBD II P-Codes
  • Paint Codes
  • Registry
  • Videos System
  • View Reviews
  • and get rid of this welcome message

It takes just a few minutes to register, and it's FREE

Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)

  • No ads - advertisements are removed
  • Access the Contributors Only Forum
  • Contributing Members Only Downloads
  • Send attachments with PMs
  • All image/file storage limits are substantially increased for all Contributing Members
  • Option Codes Lookup
  • VIN Option Lookups (limited)

Recommended Posts

    You can remove these ads by becoming a Contributing Member.

  • Moderators

The only way I know to steal a Boxster due to the imobiliser is if you have the key or tow it away. I have asked 2 Porsche mechanics if there is any way around this and they said no. You do not need an aftermarket alarm.

What a US Boxster does not come with is a tilt sensor. UK cars have this because it is required by insurance companies. Porsche sells a retrofit kit.

Link to post
Share on other sites

There was one little attention to detail that Porsche made that makes its factory alarm stand out from all the rest: having to get the key into the ignition within 10 seconds of opening the door with the key.

With the RFID and crypto technology thats in use now, the transmitted code from the keyfob is fairly secure. But a lot of manufacturers have the factory alarm wired to the door lock, that is, you deactivate the alarm just by unlocking with a key. Well the thieves discovered that if you force the lock, the switch operates just the same - but Porsche added the feature that you have to get the key verified by the Immobiliser to prevent the alarm sounding.

The front end of Immobiliser technology is again very strong. However, its the 'undocumented features' of systems like this that allow them to be breached. For example, the Immobiliser modules of some manufacturers have a very strong encryption technique, code hopping, seed response etc. but the module sends its 'Yes - OK to start' to the ECM in the same way every time. Its then not difficult to build a module that just says 'Yes - OK to start' and bypass the Immo.

An Aftermarket alarm/immo will just cut the ignition feed, starter, fuel pump and maybe some other circuits, literally at the point where the dozy installer can see where they go (i.e. right next to the starter switch) and stick the control box under the dash with duck tape...

In summary I'd say keep the system factory standard, the Porsche system is quite robust but if they want your car, they'll just take it unfortunately! On the back of a low-loader or towed away.

Link to post
Share on other sites

The stock alarm has an IR motion sensor which I find to be quite effective compared to shock sensors that go off all the time.

I don't think you'll do better to prevent theft. You can always add the club and use car cover for additional deterrence.

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.