How loud is it going to be if I straight pipe my 03 lb7? I haul my 8,000 lb tractor about 40 miles on a regular basis. Will I be able to hear the radio over the exhaust?

It isnt to bad. Once you are up to speed it is pretty quiet inside the cab.

mine was about the same as stock as long as you were not at about 2200 rpms. That is when it gets real loud.

Thanks!

Mine was Loud as hell, 7's are known for straight piped drone too.
But...if you like it loud....straight pipe it.