My MH has the Cummins ISC350 8.3 engine. It has the model C16020 PacBrake exhaust brake now. I have a friend that has one of the upgraded PacBrake exhaust, PRXB I believe, that is designed to be more efficient at lower RPM's. The problem is that the one he has was made to replace a Jacobs brake, and has a 3 1/2" output to the tailpipe where mine has a 4" output. Does anyone know if there is an adapter flange made to convert the output from 3 1/2" to 4" to fit the tailpipe? Any help will be greatly appreciated!
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Joe & Annette
Sometimes I sits and thinks, sometimes I just sits.....
2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD