HOW DO YOU GET A 5.9 CUMMINS TURBO TO WHISTLE
 

whats the best way to get a 5.9 cummins engine to make the whistling sound

Weld in a whistle tip

Well it the whistle is not loud enough search "SILENCER RING" and their is a million threads that will tell you how to get you truck the whistle.

for me the biggest difference was a afe stage 2 intake. i can hear it whistle in the cab from about 1/2 psi on up with the silencer ring still in. Almost as loud as a 6.0

I have the s&b dry intake and silencer ring removed. Sounds very good but can be annoying while towing my boat.