Scott,
I will run my exhaust out just in front of the passenger side rear wheels. I think I will also use a reasonably effective muffler.

Another thing I just thought of is the Jake brake on my engine. With an open exhaust it will make quite a racket, so better have the muffler.
And if I do use the 4" exhaust cutout it should make enough noise to get me in trouble if I try.

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-