I was told the new trucks don't have a whistle anymore....this is actually one of the many complaints I've read on other forums too. And other people said it was because of what both of you said....the new design..and the odd shaped exhaust and all it's trimmings.
its quiet and I like that, but I do love to hear the turbo! But anyway, no turbo whistle on the LMM! Oh yea, the do have a silly looking exh system on them!! Very stout motor though. As long as this LMM will last maybe 250k, I will be fine..