We are looking at a "new to us" Itasca Horizon 40'. we have two to look at. Both have the same floor plan however one has the 400 hp the other has a 350. This would be our first diesel motorhome, is ...
Only took 14 minutes to correct the spelling... not a record and 2old you are at 30 minutes. The reason one cannot tell any difference in a ISL 400/425/and now 450 is because there is not any when it comes to the torque... 1200.