We have had lots of modifications done to our RV by Henderson's (Rear Sway Bar, Koni FSDs all around, Rear Track Bar, Front Track Bar, Upgraded bushings, Safety Plus Steering, HID headlight upgrade, Engine and Exhaust performance upgrade, plus miscellaneous repairs), this just my compliments to them for how great a job they have done. One of the things that we had done at your shop was to have the performance tuning done to our engine along with having the tuned exhaust system added. I cannot brag enough about the improvement in performance we realized with just this single upgrade ! On the trip out to California, I had to do a lot of mountain driving through Wyoming, Utah, Nevada and California. I felt like the engine was struggling a lot just to get up the mountains, and found myself being the “slow moving vehicle” many times. I was only getting about 6 miles per gallon in the mountains and about 8 mpg on the flats. After the tuning, I could easily climb hills at 65 mph, and my mileage went up to about 8 mpg in the mountains, and between 10 - 11 mpg on the open highway ! 2 mpg may not seem like much, but it was almost 20%, and I am EXTREMELY pleased with the improvement. To illustrate to you just how significant the difference is after Henderson-izing my RV, I have a little story for you. On our return from our trip, I had to take the RV in to our dealership to get the oil changed and to have the slide-topper replaced. Just for grins, I had our salesman take it out for a test drive. His reactions were worth the price of admission ! He first noticed the difference in sound of the engine : “That sounds meaner !”. Then I had him really step on it to enter the highway (I-70), “Holy cow, it is still accelerating, even going up hill !” Then he said, “This isn’t normal, even new ones don’t drive like this.” And when we went around some pretty bumpy curves, he said “you won’t believe it when I say this, but it drives more like riding a motorcycle.” When I told him about the Safety Plus and all the suspension upgrades, even he said “You really got your money’s worth ! I won’t be able to sell you a new vehicle now.” To say that Jayne and I are happy with the outcome of your service would be a severe understatement. Your Road Performance Assessment revealed exactly what we needed, and we feel like we have gone from a run-of-the-mill used coach, to an RV that drives like a dream, all at a very reasonable cost to us. The experience of dealing with you AND your incredible shop team has been exceptional, just first rate. I mean this sincerely, you have a world-class team who provide GREAT service. I will be a very vocal supporter of yours for a long time to come. The values shown by you and your team are just one of many reasons to patronize Henderson’s Line-up. I only regret that there really is nothing more that you can do for us !