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FIAMM Low Note Horn Install

6563 Views 14 Replies 8 Participants Last post by  sxKoup
So unlike the ones who have installed a complete horn replacement using either the Hella Supertones like D113 and Koup SXR, or the FIAMM high/low like BigE, or even the PIAA ones, I decided to keep the stock horn and just add a second low tone - got the FIAMM Freeway Blaster 130db 405hz horn.

So I made my way out to CanadianTire and picked up the horn for $28, and having run out of most of my connectors I bought quite a bit of stuff..

Things you will need
- New Horn (FIAMM 405hz low tone)
- Female Spade connectors (multiple)
- 8mm Ring Connectors multiple
- Standard Automotive Relay
- 16 AWG Wire
- Heavy Duty Inline Fuse holder
- 10 or 20 Amp Fuse (depending if you are doing 1 or 2 add on horns)
- 18-22 AWG Wire Splicers
- Wireloom
- Wire-ties
- Electrical tape

Tools you will need
- Ratchet
- 8mm Socket
- 10mm Socket
- Flat + Philips head screw drivers
- Wire cutters and crimps

First: Wire Prep (Indoors)
1. Used the provided ground ring and female spade and connected it to the horn
2. Prep the relay
87 - Positive to New Horn (1 foot) (female spade - female spade)
30 - Positive from Battery with Inline fuse (3 feet) (female spade - inline fuse holder - 10mm ring)
86 - Line to tap into old horn positive (pink) (6 inches) (female spade - open cable)
85 - Ground (1 foot) (female spade - 8mm ring)

Verify that the cables have connectivity from end to end with a multimeter.

Second: Head out to the car and remove the lights and bumper
Bumper Removal Video - Thanks to BigE! (->
Written Instructions..
1. Remove 3 plastic screws underneath the bumper and a 8mm in each wheel well
2. Remove 4 top plastic above grill
3. Remove headlight bolts
4. Tape below headlights and the top corner of each light
5. Unplug both headlights and remove
6. Pop the 3 tabs under each headlight
7. Tape edge between bumper and fender
8. Place rag beneath bumper as it might fall on the next step
9. Pop from white clip where bumper meets fender
10. Pop 3 tabs between bumper and fender with flat head (I did not need to do this the bumper popped off at step 9 for me
11. Disconnect fog lights if you have them
12. Remove bumper from front - hold from beneath the headlights

Third: Mount the new horn.
1. Mount the new horn using an existing bolt and connect the 1 ground 8mm ring from the relay to the same bolt after scraping the paint off. (relay port 85)

Fourth: Connect all the cables.
1. Splice into the pink cable connected to the existing horn (do not cut if you intend to use the existing horn) (relay port 86)
2. Connect the female spade to the new horn (relay port 87)
3. Connect the female spade to the relay and the opposite end positive ring terminal with the inline fuse to the battery (relay port 30)

Fifth: Test the horn!
( i had a ground problem where I did not scrape enough paint off)

Sixth: Wireloom all the cables and mount the relay to a hole with a wire tie. (Wire tie wirelooms if necessary)

Seventh: Test the horn again!

Finally!.. Put the bumper and lights back on/in!

Here is a short video (WATCH IN HD for better sound) showing the differences between stock / low-tone / stock+low tone! I will get around to getting a video of me actually honking the horn.. its wayyy louder!

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1 - 6 of 15 Posts
@justinadams - video took a while to process through youtube.. 1080p

@Thunderbuck - its easy mate.. let me knwo if you have any questions.. but the written guide is fairly vague as mounting goes (see the pictures)
@MFury - running the combination with the stock horn it "kind off" sounds like a hi/low kit like the PIAA or HELLA kits.

personally I will try to find a 330hz horn and then replace the stock with that to achieve a bassy two tone horn. (should take no longer than 5 minutes to replace stock as I would use the stock mount, open 87 port on the relay, replace inline fuse with a 20 AMP. - All accesible behind the grill which is just 4 plastic screws)
@MFury.. its how the video sounds with the garage echoes.. Ill have to take a video of how it sounds out doors..

as far as the delay goes, I wouldnt expect the delay to be that significant through a simple relay.. I checked and the stock sure seems to fire sooner than the new horn.. but barely.. not as noticeable as with the echo in doors.. so matching might be a good idea.. but when I use the horn out doors I dont notice the delay
@tampajoey i used to live in FL (daytona).. is it me or do buses never signal and always abruptly stop in tampa all the time causing anything behind them to swerve? .. whenever I'd ride (motorcycle) down to USF I would have atleast 3 of those incidents causing the avg bad driving-makeup applying teen to swing over as I would slap their car and scare the shit out of them instead of honking.. good times.. scary but good

@gwildor.. never thought of it like that.. but good point.. I guess even when blaring the horn it truly does sound like two cars.. neat!
no prob! let me know if you have any questions!.. and welcome to the forum!
1 - 6 of 15 Posts
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