Welcome to Know Your 2
A repository of knowledge for all things MR2 related

How To:- Fit Air horns

Star InactiveStar InactiveStar InactiveStar InactiveStar Inactive

Replacing Standard horns with air horns

 I found that Mr T’s horn set up was absolutely pathetic, so decided to fit air horns instead. I decided to fit them under the radiator cover out of the way.
The standard setup has 2 horns, 1 behind the radiator on the right and 1 in front of the radiator to the left of centre bolted to the central support. You can see the front one in this picture.


 I removed the horn behind the radiator and used the mounting point to fit the compressor and a relay, which you can see in these pictures, the air hose is routed over the top of the radiator and down to the horns which I mounted on a bracket bolted to the right side of the central support. If you remove the number plate (2 screws) and the grill (3 screws) there’s plenty of room to work


 In this picture you can just see the horns through the hole. I left the existing front horn in place and just pulled the plug out of it.


The finished article.  Just refit the cover and you’d never know they were there. Until you hit the horn !!

      The reason I used a relay ( which came with the horns) is that the way Mr T has wired the horns the horn push earths the circuit.I didn’t want the higher current passing through the horn push in case it causes problems. So I used the horn push to energise the relay and used the relay contacts to switch the power to the horn compressor. Here’s the circuit I used, I left the standard plug on and used male push connectors to connect to it.


Please note  All modifications are carried out at your own risk. They have all been tested by me and work fine on MY 1988 T-bar

 Jimi Lawson  


Copyright © by MR2 Owners Club All Right Reserved.

Print Email

Technical Disclaimer 

The MR2 Owners Club and its respective owners, editors and contributors make no representations about the suitability of the information contained in the documents, materials and related graphics published on mr2oc.co.uk  

By using this site, you hold the site and it's affiliates not legally responsible for any damages due to advice given here. This site and it's affiliates takes no responsibility for consequences of any actions that arise from advice given. Any opinion is given with information provided by you and can not be taken as absolute.

All repairs should be undertaken by a competent and qualified technician. By using this site, you understand and agree that all advice given and followed are at your own risk and do not hold this site or it's affiliates responsible for any damages.

Facebook Feed

Facebook Latest