In Stockton, Ca, smog tests for cars and pickups are performed on a dyno, except my All wheel drive Honda CRV, which would require a 4 wheel Dyno, so they just do a static test. They do the same static test on my 32 ft. MH. The problem is the length of the exhaust probe being long enough to reach back to the exhaust pipe. Then the same problem with the OBD II connector cord being long enough reach the outlet in the MH. Then the operator has to have visability to the computer screen from the drivers seat to get the right RPM's for the test. This all takes room so scout it out before committing. I took a tape measure to my testing station and made some measurements and by parking across the front of the test station he was able to reach the tail pipe and still be able to see the computer screen from the drivers seat. I took the doghouse off the engine but he didn't even look at the engine but good idea to ask If they needed to take it off as they would probably charge extra if they had to remove the doghouse instead of you. So a static test is acceptable for your test on the MH. Just ask about static testing and if they have room for your size MH.