Just increased the airline size to my Conrail S3L PVC train horn from 3/8" to 5/8". Definitely made it louder. Have a listen.
The only thing in the oil field that's for sure, is nothing is for sure.......
2017 Ram Laramie Longhorn 2500, Lifted, deleted, MM3 tuned by Double R Diesel. RevMax Enhanced 68RFE
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