I thought they were very noisy... my cummins is very quiet...Interesting find Hozay, but these guys are sure going about things the hard way, lots of automotive diesels out there, if you remove the EPA handicaps from them they preform just as well or better, Anyone considering a diesel swap should look for old bread trucks with BT4 cummins(designed by case so they kind of fit the ag motor thing) Again thanks for posting this a good example of what can be done with some knowhow and perserverance :2thumb: