We have a 2006 Monterey Montclair IV with a 400HP CAT C9. I read all the posts about the benefits of installing of the CAT electric fuel pump and decided to get 'er done. I didn't feel equipped to do the work myself and wasn't sure about where to get the work done. I noticed in a post that a member had the work done at Cascade Diesel in North Bend, WA so I called them at 425-888-1886 and talked to Mark, the owner. I told him that I'd bought all parts that were on Dave's list at Ask Dave and we set a date for the install. The total for the parts was about $700 and the install was $500. The difference in operation is amazing! It's like having another gear when cruising and hill climbing and, although I haven't done much of an analysis, fuel mileage seems to have increased a mile per gallon or better. And no more surging either. All Beaver owners need to know about this CAT recommended upgrade and have it installed on their coach. And thanks, Dave!