CRxB

I wanted to change the dinky sounding horn we have in our tC so I got some Hella Twin Supertone (part# 85115) which is rated at 118db, one horn has a 300Hz low tone and 500Hz high tone Basically leaving a binging sound in your ear if you are right in front of it

Safety 1st - take out the ground from your battery and this is a D.I.Y. so don't blame me and I take no responsibilities...proceed at your own risk!

now on with the swap...

Open your hood and you will see you horn infront of the radiator. unclip harness and unbolt them using a 12mm socket or open wrench.

Comparison of the stock horn and the hella


Comparison of the stock horn and the hella mounted


Since the stock horn used the bracket as the grounding point so I also followed suit.


Now connect the 2 positive terminals and tap one of the horn harness(which is a positive trigger) for the relay. (solder and tape or crimp...doesn't really matter as long as the connection is good)


Ok since this horn has a high current draw it came with relay(highly recommended eventhough our factory horn is a postive trigger)

relay diagram care of www.the12volt.com

connect the following:
85 - Ground
86 - Positive Trigger from Horn Harness
30 - Constant 12volts(FUSED - I placed a 7.5amp)
87 - Positive Terminal from Hella Horn
87a - N/C(no connection)

Here's my wired up relay with my fuse and ground wire(use of split loom is optional but would look nice )


I mounted the relay on the bolt(10mm) holding down the airfilter box next to the battery


All you have to do now is connect the fused wire to the positive side of the battery, ground your relay( I used the same bolt where I mounted the relay ) and replace your ground from your battery.

picture of the finished install....


Honk away guys and wake up all those sleepy heads on the street

mikochu

Awesome! Thanks for the tutorial, Hubert. I bought some FIAMM Highway Blasters yesterday, but wasn't impressed with them. Would it be possible to record the new supertones...versus your xB's stock ones?

Thanks!

btw, added to the tech section. It'll be moved to the FAQ section in a week or so.

also...

^^^ looks like a robot or something... red eyes, blue mouth...

CRxB

your welcome man glad I can add some tech. as far as recording the sound I'll see if I can do it tom...I'm thinking I'll be infront of the car since my friends now walk behind my car everytime they see me in it but yeah these things blast!

i thought the same way when I say it cause I have red neons on the top grill and white on the bottom....

JasonH

Nice write-up! I'd like to hear the horns too, if you ever get around to recording them. I've thought of replacing mine, but I'm not sure if I just want to buy some new ones or go to a junkyard and see what I can find. Some old American cars have some serious horns!

jrv2000

if you could put up that recording of the horn that would be awsome

ninjaKid

oh hell yes . . . here comes the Dukes of Hazzard horn!!!!

wedgiesaurus

any update on the recording?

Smokin

bump

CRxB

*update* 06-15-05

sorry for the long delay but here is the sound clip from the hella's also thanks to matt(SGMgms) for recording the clip.

so here you go ..:Click Me"..

Hope this helps guys,

Boricua

Price?

The cheapest I found was $57 here: http://www.truckcustomizers.com/prod...4HLA261.1.html

CRxB

yeah they range from $60-$80 everywhere

jrv2000

could anyone hear the sound clip? For some reason when I tried to listen to it all I herd was silence.

JasonH

I heard it fine. Turn on your speakers, perhaps?

jrv2000

I got it to work on my other computer, one of mine is f ing up for some reason.

sensay

yup they sound like any other horn... probly just louder

yesti

i think the factory ones aren't that bad. at least they don't sound that 'F' note that american cars have. THOSE sound so wimpy, almost like like a loud whimper. My friend was being a butthead and blocked me so i blared the horn for a good 20 seconds at him and he said 'damn your horn is loud!' well i guess it's all relative...

zyzyx6969

I have Camry horns, sound better than stock ones
plug and play

cz3ch

Try here:

http://www.lildevilmotorsports.com/h...rn-p-5346.html

05-RS1

nice diy!

arrow519

i'm thinkin of puttin a train horn on mine

www.hornblasters.com

prolly scare the ____ outta people havin' a little tC runnin aorund with a train horn attached