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Old 11-04-2012, 10:18 PM   #1
gfxguy
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Default 2012 Impreza 2.0i Hella Supertones Install

Here's how I installed Hella Supertones on my 2012 Impreza 2.0i.

I started with these instructions: http://forums.nasioc.com/forums/show...38&postcount=1 and

I DID use the relay. I made my own harness using AWG 14 wire, and soldered all the connections, and wrapped them with heat-shrink tubing. The battery ring terminal is stud size 3/8", and the relay ground ring terminal is 1/4".



The OEM horn connector isn't anything that I could identify --it isn't a standard 0.250" disconnect like on previous models. I wanted to avoid cutting the OEM wiring so I improvized by using a two-prong spade connector. It fit perfectly into the conducting socket of the OEM connector, and I then taped it all up and zip tied the wires together on either side of the connection to absorb any stress.



There's a threaded screw hole (M6-1.00) in the frame right next to the wiper fluid reservoir, which is where I mounted and grounded the relay:



I grounded the horns to the point where I mounted them to the frame, using 1/4" stud ring terminals (I used M6-1.00x12 hex cap screws & nuts with lock washers to mount the horns).



Final product:



With grille:



I did have to angle the horns further down when installing the grille to get the top part to fit (the part that blocks rain from entering directly into the air intake). The horn bracket is touching the rubber anti-vibration mounts that are below the holes where I mounted them, which is probably fine, though it would have been nice to mount them so that they hung straight down.
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Old 11-05-2012, 12:10 AM   #2
ans2k
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sir, you have inspired me to tackle this project
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Old 11-05-2012, 05:47 AM   #3
flyboy1100
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Quote:
Originally Posted by ans2k
sir, you have inspired me to tackle this project
Second
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Old 11-05-2012, 05:53 AM   #4
M45
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I'm not familiar with the subaru scene - why do you care to upgrade your horn?
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Old 11-05-2012, 06:02 AM   #5
flyboy1100
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Quote:
Originally Posted by M45
I'm not familiar with the subaru scene - why do you care to upgrade your horn?
Have you tried your horn?
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Old 11-05-2012, 08:07 AM   #6
auskip07
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DGM 5mt

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I was so wrong.

Last edited by auskip07; 04-26-2014 at 10:17 AM.
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Old 11-05-2012, 09:03 AM   #7
M45
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Quote:
Originally Posted by flyboy1100 View Post
Have you tried your horn?
I have. It hardly ever gets used though so I don't really care that much.
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Old 11-05-2012, 10:16 AM   #8
flyboy1100
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Quote:
Originally Posted by M45

I have. It hardly ever gets used though so I don't really care that much.
I get cut off all the time, I think the dgm must be difficult to see. So I want horns loud enough that people hear them and jump a little

The horn in my Buick and our jetta are much more substantial then the subaru horn
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Old 11-05-2012, 11:02 AM   #9
gfxguy
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That's why I got them too. Look on YouTube if you want to hear what they sound like.
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Old 11-05-2012, 04:01 PM   #10
myrt1987
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Subscribed. I need to do this.
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Old 11-06-2012, 01:45 AM   #11
pkL
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The OEM horn is so gutless and it makes me embarrassed to use it. I will definitely do this when I have the time to order the horns and go pick them up.
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Old 11-06-2012, 08:09 AM   #12
M45
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Quote:
Originally Posted by pkL View Post
The OEM horn is so gutless and it makes me embarrassed to use it. I will definitely do this when I have the time to order the horns and go pick them up.
the only person that should be embarrassed is the person cutting you off for driving like an idiot.
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Old 11-06-2012, 11:44 AM   #13
flyboy1100
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Quote:
Originally Posted by M45

the only person that should be embarrassed is the person cutting you off for driving like an idiot.
I can't hear my own horn over the radio, how are others going to?
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Old 11-08-2012, 12:30 AM   #14
pkL
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Quote:
Originally Posted by M45 View Post
the only person that should be embarrassed is the person cutting you off for driving like an idiot.
Cutting me off for driving like an idiot?
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Old 11-08-2012, 06:35 AM   #15
flyboy1100
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Horns ordered, should be here tomorrow. 46.04+ tax, thanks Amazon!
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Old 11-08-2012, 08:56 AM   #16
myrt1987
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Quote:
Originally Posted by pkL View Post
Cutting me off for driving like an idiot?
lol i think he meant the crazy driver was the idiot.
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Old 11-08-2012, 12:34 PM   #17
flyboy1100
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how did you remove the grill?
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Old 11-08-2012, 12:39 PM   #18
myrt1987
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Quote:
Originally Posted by flyboy1100 View Post
how did you remove the grill?


black plastic pop-clips on top, 2 SS screws behind, push-tabs at the bottom of the grill. Youll probably need a stubby phillipshead screw driver for the screws and maybe flathead for pop-clips
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Old 11-08-2012, 12:56 PM   #19
flyboy1100
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Quote:
Originally Posted by myrt1987 View Post
black plastic pop-clips on top, 2 SS screws behind, push-tabs at the bottom of the grill. Youll probably need a stubby phillipshead screw driver for the screws and maybe flathead for pop-clips
i know i saw it posted somewhere, and i am searching, but it is slow going.

the 2 screws that are behind, are they on top or the back? i would go look but my car is currently 400 miles away from me
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Old 11-08-2012, 01:32 PM   #20
gfxguy
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There are four screws, on at each "corner" basically. Easy to see with a flashlight. You'll need a stubby screwdriver, or a flexible screwdriver attachment (what I use since I don't have a suitable stubby). It's got an led light on the end which makes it easy to see what you're doing.
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Old 11-08-2012, 01:34 PM   #21
flyboy1100
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thanks
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Old 11-08-2012, 02:01 PM   #22
gfxguy
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Btw, I'm thinking of grounding the horns straight back to the battery instead of what I described above. I didn't bother removing paint from the frame to make sure the connection is good, and while the resistance wasn't too high (~ 0.8 ohm), I'm concerned about it being unreliable. Less resistance should mean louder horns too. Going to wait until my new soldering station arrives though.
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Old 11-08-2012, 03:49 PM   #23
flyboy1100
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Quote:
Originally Posted by gfxguy
Btw, I'm thinking of grounding the horns straight back to the battery instead of what I described above. I didn't bother removing paint from the frame to make sure the connection is good, and while the resistance wasn't too high (~ 0.8 ohm), I'm concerned about it being unreliable. Less resistance should mean louder horns too. Going to wait until my new soldering station arrives though.
There has to be some other ground nearby to use
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Old 11-08-2012, 03:54 PM   #24
Blackmamba24kb
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Quote:
Originally Posted by gfxguy View Post
That's why I got them too. Look on YouTube if you want to hear what they sound like.
i need to find someone who has these install to hear them in person. the youtube video makes hellas and stock sound almost the same if anything.
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Old 11-08-2012, 04:06 PM   #25
gfxguy
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Quote:
Originally Posted by Blackmamba24kb

i need to find someone who has these install to hear them in person. the youtube video makes hellas and stock sound almost the same if anything.
Tonally they're similar to the stock horn, just much louder. Most recordings probably clip/compress the volume. My son didn't react when I was testing out the oem horn in the garage, but when I tried the supertones for the first time he shouted from the house "what was THAT?" . Testing them even with short bursts in a closed garage is borderline painfully loud.
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