i've installed MANY train horns in everything from big 4x4 trucks to cars........check out the K3 setup from hornblasters.com......they are truly deafening LOL
they used to have a K5 system which used 5 trumpets......
i have 2 compressor/tank/valve setups, just need to order the trumpets......a set WILL be going on my 924s, the 120lb systems are plenty loud, but the larger 150-200lb setups are where it's at.
depending on the size of the compressed air tank you install you can have anywhere from a 5-20 second blast.......good fun
