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4" vs 5" exhaust - What is the noticed difference?

62K views 43 replies 30 participants last post by  dmmadigan1  
I'm thinkin bout runnin a 4" straight but people and say put a muffler on it. I wanna b able to hear it tho a little n the cab. Could I still with a muffler on it?
 
I'm startin to lean toward a 5" straight mainly just because of sound and another is cause all my buddies have 4" and I wanna have somethin diff. Should I run a tip with it? Would it sound any deeper? What's y'all opinion…?
 
Cool thanks for the info.