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Replacing stock horn with an air horn

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Old 09-23-2009, 01:23 AM
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Replacing stock horn with an air horn

I'm thinking about replacing the stock horn on my MY09 GTS with a Hella Air Horn.

I know it sounds cheesy, but I hate the sound of the OEM horn (sounds like a Buick IMHO!), and the Hella Air Horn sounds great! I have a Hella horn in my 911, and I love it.

Does anyone know how difficult it is to access the horn and replace it? I did a search and found nothing on this subject.

Thanks!
 
  #2  
Old 09-23-2009, 05:16 AM
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i replaced both my standard horns for electric air horns.
if you have a cayenne or S its easy, if you have a turbo its a bit more aggro.
because there located eather side of the car just behind the intercoolers.
you can access them from underneath by removing the front wheels and going up underneath the wheel well lining.
its so worth it because she now sounds like a train.

good luck.
 
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Old 09-23-2009, 10:27 AM
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Originally Posted by ONE234 View Post
i replaced both my standard horns for electric air horns.
if you have a cayenne or S its easy, if you have a turbo its a bit more aggro.
because there located eather side of the car just behind the intercoolers.
you can access them from underneath by removing the front wheels and going up underneath the wheel well lining.
its so worth it because she now sounds like a train.

good luck.
My horn/s need replacing.
Do they need any additional wiring etc for the air horns or are they a quick, straight replacement?
Do you have to remove the wheel well lining or is it possible to get at them without removing it?
Thanks.
 
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Old 09-23-2009, 10:35 AM
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as long as there not drawing too much current you can just fit them as a direct replacement.
if there a bit "heavy" you might need a relay.
ive known people get to them by just removing the undertray and others need to take out the wheel liners.
change both of them for max results
 
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Old 09-23-2009, 05:37 PM
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Wow, I had no idea there were two horns!

Is it possible to replace one and simply disconnect the other? I feel that two sets of air horns might be major overkill! Typically air horns systems are dual horn (trumpet) anyway.

What is the “undertray” that needs to be removed to access the oem horns?

Does anyone have any pics of this?
 
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Old 09-24-2009, 05:31 AM
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yes you can just replace 1 horn, but why?
porsche use the high/low frequency horns.
my electric air horns were only a bit bigger than the originals (look like a large snail )
the undertray is under the engine front (covers the sump etc) when thats removed you can just get small hands up to access the horns (cayenne and S)
turbo is better done through the wheel well liner.
dont forget to point them backwards or downwards so they dont fill with water etc.
 
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Old 09-24-2009, 05:26 PM
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anyone have good example of horns that can be easily switched with no relays?

http://www.youtube.com/watch?v=XvdjOsvBXFU

obviously a bit obnoxious and not a simple replacement
 

Last edited by LosAngeles; 09-24-2009 at 05:32 PM.
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Old 09-25-2009, 02:39 AM
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Thanks!

Do you mind telling me which air horns you have?

I have a GTS, so I assume it's the same install procedure as the S, correct?

Originally Posted by ONE234 View Post
yes you can just replace 1 horn, but why?
porsche use the high/low frequency horns.
my electric air horns were only a bit bigger than the originals (look like a large snail )
the undertray is under the engine front (covers the sump etc) when thats removed you can just get small hands up to access the horns (cayenne and S)
turbo is better done through the wheel well liner.
dont forget to point them backwards or downwards so they dont fill with water etc.
 
  #9  
Old 09-29-2009, 03:05 AM
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Originally Posted by ONE234 View Post
i replaced both my standard horns for electric air horns.
if you have a cayenne or S its easy, if you have a turbo its a bit more aggro.
because there located eather side of the car just behind the intercoolers.
you can access them from underneath by removing the front wheels and going up underneath the wheel well lining.
its so worth it because she now sounds like a train.

good luck.
Is the undertray the same as the skidplate, the piece at the front that attaches to the bumper?
Is this easy to remove as I now have 2 new horns to install. Any pictures would be great...
As I have 2 horns to install, do not fancy removing both wheel liners..
 
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Old 09-29-2009, 12:38 PM
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Does anyone know if these Hella Dual Air Horns will fit in the location of the stock horns (on both sides)?

http://www.amazon.com/gp/product/B0002MA03I

With a total of four "trumpets" my Pepper's horn is going to be LOUD!!!
 
  #11  
Old 09-29-2009, 05:28 PM
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I haven't messed with the Cayenne but have installed air horns like this on few other cars:

http://www.amazon.com/Stebel-Nautilu...=pd_sim_auto_2

They are LOUD! And much easier to install if space allows it. The delay is noticeably less than the traditional air horns with tubing too. Relay & additional wirings are must for most modern cars. (I have only seen older european cars that come with factory air horns.) Otherwise you are guarantee to pop a fuse.
 
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Old 09-30-2009, 05:04 PM
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I may have a go at installing the horns tomorrow. I take it that if I g via the wheel liners, that thet dont have to come completely off, just dropped at the front end? ( hopefully.)
 
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Old 10-03-2009, 12:52 PM
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I would like to install a trumpet horn like they used to have in the 993s and back in a 997 S, is this possible? i was told they are too large?

Anybody else try this?
 
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Old 10-03-2009, 03:01 PM
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why too large? you could fit an elephant under there if you wanted.
just make up a bracket and you might have to extend the wires a bit?

fit any horns you like, my 2 electric/air are about 3 times the size of the OEM ones.
and 3 times as loud
 
  #15  
Old 10-03-2009, 03:56 PM
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I fitted the new horns via the wheel arch covers. A little tricky to get at the wiring connector and the short length of wiring to the horn, but got there in the end. I did not go big horns though, just new and better. Just a little louder.
 

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