Converting 4000 series to vertical exhaust

[sunnyside360]

Very similar experience to what I had when installing verticle exhaust on my 3720. Kit cost a little over $400 (over priced in my opinion), had to reuse old clamp and pipe is not centered in hole in spite of having drilled the hole exactly where marked under hood. Like you say, I'll probably be the only one who notices the pipe is off center. But, it works exactly as advertised and no more fumes in the cab.