A member on here has the 2 best sounding trucks out there, 03 6.0 6speed with straight pipe, and a turbo 85 6.9 with stacks. The 85 sounds WAY better stacked than with the single 4" straight it had on it when I got it.
Can't deny the 8V92 Detroit rumble, but like others have said, it gets old. 24 valve Cummins sounds pretty darn tough as well, but again, can get on your nerves.
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