Installing Air Horns in a MKII MR2

WARNING:  This page is meant to be a guideline only. Individual experiences vary. Any time you work on a car, you risk damaging it...if you damage your car while installing the horns, don't blame me, ok?! ;>

The horns sound great though...no delay at ALL (I was worried there would be, with a compressor and all)...VERY loud!  I owe a lot of this to Troy Pummill though ('94T)...he installed air horns first, and I had the chance to learn from his experiences before attempting this myself! Troy installed the compressor in a different location than I; I think my solution protects the compressor from the environment better and will contain it in case the adhesive fails - so the compressor doesn't go bouncing down the road! ;>


What you'll need:

Air Horns, consisting of:

Tools:

Other


Prepare the air trumpets for installation

Wiring

Compressor

Now, before actually sticking the mounting tabs to the car, install the air tubing as required, to make sure it'll be long enough and that you actually can mount the things where you want to. Route the tubing and wires.  if you like it, great!  Now, remove the adhesive's backing from the compressoor mounts and press it firmly against the mounting surface (don't forget to clean the surface with the alcohol!). Press and hold for a few seconds (it's best if the wires and air hose are attached to the compressor while you do this so you don't have to disturb it later). Follow the manufacturer's directions on the orientation of the compressor. Failure to do so may result in the compressor exploding (just kidding)!

Now, clean the mounting surface for the air trumpets *again* (clean is good), remove the adhesive backing, and install them in place, pressing firmly once you're sure they're in the right spot.  Again, tighten the wire tie on each trumpet before slipping them up into the area behind the bumper; you'll never get to them up there. Don't tighten the wire tie completely or you'll never get the adhesive thingee to sit flush. I didn't use the mounting tabs on the air horns, I just wrapped the wire tie around the horn body itself and made it tight enough that it can't slip out. It's best to have all air hoses attached before doing this though they CAN be attached later.

IMPORTANT: The adhesive used with these wire tie mounts will take some time to cure completely.  I recommend not driving your car for at least 12 hours if possible. Not a really big deal, but it wouldn't hurt. If you DO drive it immediately, just try to take it easy, don't corner too fast or anything. One user had the compressor fall off; you may want to consider drilling some holes for a more secure compressor installation (I've had no trouble with mine). The trumpets are light enough that the adhesive works great.


HOME - - PICTURES - - PROJECTS - - DYNO DATA - - LINKS