Nissan Titan 5.0

[Sprout]

I seen a 2016 Nissan Titan with the 5.0 Cummins. The truck was deleted. The truck whistles while parked and while you drive it. The Titan has a 4” turbo back. Any ideas on why it whistles? Thanks

 

[GrantP]

The exhaust system (or lack thereof).

 

[NIsaacs]

The Holset turbo is a fine whistler with some exhaust systems.