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Installed MBRP's 4" turbo back exhaust today that my wife got me for Christmas. Fired it up when finished and it didnt have anywhere near the turbo whistle I thought it would.
Well it's not christmas yet. Is you cat still in!!! I just installed a cat delete pipe with stock exhaust and muffler still in and have a great turbo whistle!!!
You must have a late 04 turbo on your truck, my early 03 with muffler delete sounds like a jet engine in the morning when it goes to high idle. You can hear it at least 50 foot away.
Well didnt know I had to be so specific! wife bought for me for christmas, it came early, I installed it today before christmas. But anyway its the cat delete with muffler and yes my truck is a late 04 build date. I had a gutted cat on my stock exhaust and was almost as load.
Installed MBRP's 4" turbo back exhaust today that my wife got me for Christmas. Fired it up when finished and it didnt have anywhere near the turbo whistle I thought it would.
I have the same exhaust on my 05 and did not have much whistle with the cat on, it is off now and really sounds good, to me anyway. But that is subjective and someone else might say it is not loud enough.
I have an 06 with that same exhaust. I have the cat delete pipe and their muffler, and you can hear the turbo whistle without a doubt. I have had people ask me about it.