Horn upgrade

Speedy1959 · Jul 14, 2020

Hi

I have heard from somewhere that a simple and worthwhile horn upgrade is to fit a horn off a 5 series BMW car.
2 questions..
1. Will there be a problem with the original wiring to supply the power WITHOUT having to fit a relay?
2. What year of car are we talking??

My bike is a 2015 year version (GS)

My friend has fitted one of the ones in the link below..It sounds like a car/truck horn..
His bike is an older non can bus bike (2005 Suzuki GSXR750)
I assume I couldn't fit one straight to my bike without a relay?
As you may have gathered I dont want to start splicing wires and fitting relays etc..

https://www.ebay.co.uk/itm/Universa...878729&hash=item1ce2340827:g:-t8AAOSwNAVeJVmg

RedRick Esq. · Jul 14, 2020

To save alot of buggering about why not just get a denali sound bomb mini for 20 odd quid delivered

Plug and play

wileeeeeey · Jul 14, 2020

Or get a full akra system and never use your horn again.

Speedy1959 · Jul 14, 2020

Thank you both for your suggestions...
A full Akra system may just cost a tad more than a horn Lol.

Thanks again,

S

Rowle · Jul 14, 2020

RedRick Esq. said:
To save alot of buggering about why not just get a denali sound bomb mini for 20 odd quid delivered

Plug and play

When you say plug and play, it fits straight in and the plug goes on with no canbus fiddling etc ?
If so, will get one. :bow

captaindan · Jul 14, 2020

It does, i second the denalli mini sound bomb, works a treat.

MIKE R · Jul 14, 2020

I have a Stebel Magnum (low) on my GSA. Available on eBay for just over £20

With a bit of jiggery pokery just about fits where the original horn goes and is a LOT louder than OE at 136DB.

No problem with the Canbus but it has spade connectors so you would have to buy an adapter from somewhere like NN or cut the original connector off and use a female spade connectors

Mike

Why is the picture upside down.....tried 4 times...never has this problem before

Rowle · Jul 14, 2020

Just checked and you need a small loom plus the horn.
Not bad for £35 though.

https://www.ebay.co.uk/itm/BMW-R125...ke:BMW&hash=item4b6387e8ed:g:Y~IAAOSw~9RcxtbZ

https://www.sportsbikeshop.co.uk/motorcycle_parts/content_prod/341330

RedRick Esq. · Jul 14, 2020

Rowle said:
Just checked and you need a small loom plus the horn.
Not bad for £35 though.

https://www.ebay.co.uk/itm/BMW-R125...ke:BMW&hash=item4b6387e8ed:g:Y~IAAOSw~9RcxtbZ

https://www.sportsbikeshop.co.uk/motorcycle_parts/content_prod/341330

It was literally plug and play on the Ducati

Mounted on the standard OE bracket and connectors just popped on
the mini list as loud as the full big thing but it is a lot smaller

r1happy · Jul 14, 2020

I can’t remember ever having to use the horn in the last 20 years of riding a motorcycle, however if you do have a need may as well buy one people can hear.

Steviej4558 · Jul 14, 2020

Hay mate,

I just fitted a 5 Series (part no 7159421)low tone horn to both my 2015 RT and GSA! Yes plug and play and direct swop on both! Just need to bend th bracket about 2-5mm to allow the bigger unit!

Load as feck! £7 on eBay each

Cheapest mod ever! FACT

Rowle · Jul 15, 2020

Steviej4558 said:
Hay mate,

I just fitted a 5 Series (part no 7159421)low tone horn to both my 2015 RT and GSA! Yes plug and play and direct swop on both! Just need to bend th bracket about 2-5mm to allow the bigger unit!

Load as feck! £7 on eBay each

Cheapest mod ever! FACT

Ordered ! Should be here tomorrow .
Great info thank you :bow

Speedy1959 · Jul 15, 2020

Thanks again for all your responses.

S

richardbd · Jul 15, 2020

RedRick Esq. said:
To save alot of buggering about why not just get a denali sound bomb mini for 20 odd quid delivered

Plug and play

True - it's plug and play BUT it makes no more decibels than the OEM stock item. Check TMF's video comparison...

richardbd · Jul 15, 2020

r1happy said:
I can’t remember ever having to use the horn in the last 20 years of riding a motorcycle, however if you do have a need may as well buy one people can hear.

Try riding in China. Horn is more important than anything else!

Eugen · Jul 16, 2020

x2 for the 5 series car horn option. Works a treat and cheap as chips. From memory I think the same (or very similar) low tone horn was fitted to an earlier gen of 1200RT?

If you've not seen it, this is worth a look: https://www.youtube.com/watch?v=MJVf70e1Lfo

Rowle · Jul 16, 2020

Mine came this morning.
Just given it a lick of paint.
When i fit tomorrow i will do a decibel before and after and let you all know.
My 5 series horn was £9 off ebay - delivered next day !
The little plug was attached to keep the socket clean - looks identical to the one on my GS.

Flipper_Man · Jul 16, 2020

Rowle said:
Mine came this morning.
Just given it a lick of paint.
When i fit tomorrow i will do a decibel before and after and let you all know.
My 5 series horn was £9 off ebay - delivered next day !
The little plug was attached to keep the socket clean - looks identical to the one on my GS.

Which part no did you order from eBay ? The video of the American chap seems to note a different part no. The part number mentioned earlier 7159421 appears on eBay as a 3 series horn rather than 5 series.....but I guess they can use the same horn on multiple series !

Rowle · Jul 17, 2020

Flipper_Man said:
Which part no did you order from eBay ? The video of the American chap seems to note a different part no. The part number mentioned earlier 7159421 appears on eBay as a 3 series horn rather than 5 series.....but I guess they can use the same horn on multiple series !

BMW 3 X1 X5 Series E53 E84 E90 E91 E92 E93 Low tone pitch horn signal 7159421
Genuine used BMW part

This is what was on the ebay advert.

Rowle · Jul 17, 2020

Ok so bmw horn fitted.
Really easy and as said before the bracket needs bending a tiny bit (pushed over by hand).
Original GS horn was 90 decibels and new bmw car horn was 94 decibels which is quite a lot as the range is not truly linear.
In my opinion it is way louder and deeper - as it should be. The GS horn was also a bit “tinny”.
When i tried the GS horn nothing happened but when i did the car horn the dogs went mad and the mrs came running in the garage :thumb2

Less than a tenner and 30 minutes well spent.
Pic below of both on and off the bike.

Horn upgrade

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