1997-2021 5.4L, 6.7L & 6.8L RV/Motorhome with Preloaded 5 Star Custom Tunes (MotorHome Magazine Reader’s Choice Award Winner!) 7015FS



MotorHome Magazine 2012, 2013, 2014, 2015, 2016, 2017 & 2018 Reader’s Choice Award Winner!

This product is not legal for sale or use in California on pollution controlled motor vehicles. Thus, this product will not ship to addresses in California due to state regulations.

SKU: SCT-7015FS(1997-2019 5.4L, 6.7L & 6.8L RV)
  • $0.00
    This is applicable for 2016+ 6.8L and 2020+ 7.3L applications only.


Why Tune My Vehicle? From the factory, your vehicle’s computer is calibrated for the masses, designed with the average driver in mind, not the performance enthusiast. This not only leaves valuable horsepower & torque hidden inside your vehicle, but it also makes for a mediocre driving experience. Our tuners unlock your vehicle’s hidden performance by re-calibrating your vehicle’s PCM for maximum horsepower & torque, increase throttle response, clean shift points, increased efficiency and the best driving experience possible.

More Performance & Less Downshifting! 5 Star Tuning’s Custom Dyno Proven UP to 42 HP & 75 TQ tune files on our 3V 6.8L Tiffin optimize the vehicle’s Air/Fuel Ratio, Engine Timing & Fuel Curves for Maximum Performance, Improved Shifting without the High Revving headaches all while maintaining OEM reliability.

Why 5 Star Tuning? We are your industry leader in Ford and GM truck, car, suv and motorhome tuning. We create and offer the most refined tunes on the market for your application. Rather than offering you a one-sized fits all approach we custom tailor all of your tunes to your specific needs. These needs can be more power, more torque, tuning for your current or future modifications or simply getting the best driving experience from your vehicle. In addition to our refined approach to tuning vehicle, we ensure your vehicle’s reliability will never be compromised.

Accolades: MotorHome Magazine 2012, 2013, 2014, 2015, 2016 & 2017 Reader’s Choice Award Winner!

Dyno & Street Proven Tunes! Our 5 Star Tuning custom tunes have been dyno developed, refined, tested repeatedly, street tested, tow tested and driven all over the country in our own personal vehicles. Nothing says highest quality tune on the market such as investing in our own vehicles and testing them for over a million test miles by our own engineers.

Free Tunes for Life! Have you added a new mod to your motorhome and wish to maximize your application’s performance? For all of our Tunes for Life members these modifications are free for the life of your vehicle while you own it. This will ensure that your vehicle run properly with our dyno and street tested tunes give you the most horsepower, torque and most efficient performance possible with your newest addition. For more information on what qualifies for free tune upgrades visit https://5startuning.com//free-tunes-life/.

Want More Performance? A 5 Star Tuning Custom will dramatically improve your drivablity, horsepower, torque, throttle response, efficiency, and towing capacity. Eliminate your factory speed limiter, sluggish throttle, sloppy shifts and lackadaisical nature of your vehicle.

How Do We Get More Performance? Our tunes bring the most potential out of your vehicle by adjusting your fuel tables, drive by wire, timing, torque converter, shift strategies and shift pressures. Visit our Custom Tuning Info section for more detailed information for your specific vehicle.

Which Tunes Are Available For My Application? No matter if your coach is stock or heavily modified, our 87 RV Daily Tow tune is the perfect match for your application.

How Does The Process Work? Below is a step-by-step overview of our custom tuning process.

  1. Plug your device into the vehicles OBDII port. The device will automatically power on.
    1. If the device does not automatically power on, you likely have a blown fuse that needs replacing. It will be the same fuse as the cigarette lighter and 12v accessory port. 
  2. Select “Program Vehicle” by selecting the center button on your X4 and follow the onscreen device prompts for key cycles on and off.
    1. The first time tuning your vehicle will take some time. The device will save your stock file in addition to tuning your application.
  3. Under preloaded tunes, select 5 Star 87 RV to load onto your motorhome.
    1. If the device states “unsupported vehicle” use the steps outlined below to obtain your ecu strategy code and/or ecu swpn. 
  4. After you select your tune, you will have user adjustable options. Continue with this step or arrow to the right and select approve to skip. After this step, custom programming will begin.
  5. Once tuning has completed the device will show download complete and will prompt you to turn the key off. At this point, you may disconnect your device.
  1. If in step 3.1 you received an “unsupported vehicle” message we will need your ecu strategy code or ecu swpn prior to writing your custom tune.
  2. Email your vehicles ecu strategy code to sales@5startuning.com. Below is the needed vehicle information: 
    1. For 1996 – 2014 vehicles: calibration codes are listed under “ECU Strategy”
    2. For 2015-2021 vehicles: calibration codes are listed under “ECU Strategy SWPN”
    3. For 2011 – 2016 6.7L Diesel applications: calibration codes are listed under “ECU Strategy,” “ECU SWPN,” “TCU Strategy,” & “TCU SWPN.” 
    4. For 2017 – 2019 6.7L Diesel applications: calibration codes are listed under “ECU SWPN” & “TCU SWPN.”

How Long Does Installation Take? The installation will take approximately 5-10 minutes.

Do I Need A Shop To Install? The installation process of the tuner is simple and can be performed by anyone. No tools are required for the installation.

What If I Have Other Technical Questions? We can always be reached at 843-536-1244 or via email at contact@5startuning.com for questions on concerns on the tuning process. We also feature a support page with information and videos pertaining to loading your custom tunes, updating your device, installation, etc at https://5startuning.com//support/.

Note: SCT’s software is only compatible with Microsoft’s Windows operating systems.

Notice: By ordering this tuner, tune or performance modification you agree to assume all responsibility for assuring that it is in compliance with all U.S., Canadian, international, state & provincial laws and regulations. 5 Star Tuning assumes no liability for any violations arising out of any federal, state or provincial emissions or safety requirements on motor vehicles arising out of the customer’s modifications and/or use of our products or services.

How Much Quicker and More Efficient Can Your RV Be?

See The 5 Star Tune In Action

Motorhome Magazine’s “5 Star Tuning Talk”

5 Star Tuning 1
5 Star Tuning 25 Star Tuning 35 Star Tuning 4


Additional information

Weight 2 lbs
Dimensions 7 × 7 × 4 in

Bully Dog, SCT, SCT/Bully Dog

29 reviews for 1997-2021 5.4L, 6.7L & 6.8L RV/Motorhome with Preloaded 5 Star Custom Tunes (MotorHome Magazine Reader’s Choice Award Winner!) 7015FS

  1. 5 out of 5

    Donald Jett

    This is by far the best product I have purchased for my 2014 V-10 Fleetwood BOUNDER. It is a shame that it is not standard, installed at the factory. Simply a great product that does what it advertises.

  2. 5 out of 5

    Mr T.

    Just a quick note since I’ve installed my 5Star 87Tune. 1 word… Unreal!!! What a difference this is a great me and took less than 10 minutes to install.

  3. 5 out of 5

    Bill Stroud

    I have started my trip from Wickenburg AZ (N/W of Phoenix) to Indiana after loading 5star. This is my first report, I am amazed at the improved power from stop to 60 mph and coming on interstates I have been changing altitudes from 1000ft to 7000ft and can tell great difference. As for as 5/3 shifts seems better, but what I have found is that it stays in 4th gear longer giving me time to disengage cruise control. This has been an poor test as we are driving in 30 to 40 mph winds with gusts up to 55mph yes my knuckles are white.I drive on cruise about 62 mph but like other have said when off cruise I find myself over 70mph with the added power. Now for mileage and remember I tow around 5700lbs. Normal mileage on this trip is 6.4 to 6.8 with a 7.0 on a long down hill run. This trip with 5star and 3 fill ups has been 7.1, 7.5 and 7.6 the last tank was highway 54 from Las Cruces NM to Tucumcari NM those of you that has driven this know of the altitude changes from 2000ft to 7000ft many times we did have the wind at our backs. – Bill Stroud

  4. 5 out of 5


    I installed the new tune at the KOA in Chattanooga TN. It took me about 10 – 15 minutes. The next morning I drove through the hills back to Ohio. Wow did I notice a difference. My 2016 Outlaw LS drove so much better than before. You can feel the difference while driving the on ramp of the freeway getting speed up to merge with traffic. So much smoother with the new shift patterns. Non of that screaming of the engine. In fact, it sounds quite sporty with a lower growl sound to the engine compared to the previous scream of the engine. Going through the hills was 100% better with this tune.

    I can’t say enough about it. Excellent product.

  5. 5 out of 5

    Chris Ochoa (verified owner)

    A MUSH have for anyone with the Ford V10 6.8l drive train. I bought and installed before my 1st 2200 mile trip. Compared to the first trips in the 2015 Forest River Georgetown where if it smelled a hill it would downshift and overall mileage was between 6 and 6.3 mpg. This 2200 trip brought the mileage up to 7.3mpg while towing a Nissan Frontier. I love it and recommend it to anyone with this drivetrain….

  6. 5 out of 5

    5 Star

    Hi, just wanted to thank you for rushing the RV tune to me on short notice so I could tune my V10 prior to my trip. WOW! what a difference it made in the hill pulling power on the rig. I especially like to change in shift points to keep the RPM around the peek torque range without the ‘Roaring’ double downshift of the stock tune. I was hesitant to get this because of the steep price, but am glad I did as the ‘driveability’ of the rig has improved greatly.

    Thank You
    Jesse Snow

  7. 5 out of 5

    Larry Thompson (verified owner)

    I added the 5 Star Tune to our 2011 Tiffin. What a difference, before it would see a little hill and down shift 1 or 2 gears. Now for the smaller hills it just goes over the top. On most other hills it will downshift 1 gear, on larger hill it will downshift 2 gears but quickly upshift again. Like others said this should be standard on the V10. I am very pleased and would recommend the 5 Star Tune to anyone. The price seems a little high but once you see what it does it is worth it. It only takes a few minutes to install and then you unhook it and you are done.

  8. 4 out of 5

    Don McCuen

    We bought the unit for our 2014 Winnebago Adventurer Motorhome, with Ford V-10 in March, 2016. We only recently had the opportunity of experiencing what it really could do. Amazing! We just arrived in Bar Harbor, Maine from Sebastian, Florida. It didn’t drive at all like the motorhome we purchased. My wife even commented on how much smoother it shifted and with much less engine noise. I am really pleased with the improved operation. I drive at the speed limit on cruise control and it seems to have so much more power. The transmission used to shift down with high engine RPM’s on almost every overpass even in flat Florida. That has improved by about 80% and is not shifting to as low a gear in most cases. I am very glad we made the purchase.

    If I was to make any suggestion it would be to allow the vehicle to drop down in speed even more on steep hills before it shifted, if that is possible to do.

  9. 5 out of 5

    David Moreland

    Just returned from a 60 mile run in my 1999 Fleetwood, mostly freeway, with long hills. The first thing I noticed was more power and “zip” from a red light using same throttle application as usual. That was a pleasant surprise. Acceleration to enter the freeway was greatly improved, again, spry and responsive. I set the cruise control at 65 mph and waited for the first hill. Nothing happened! It just cruised to the top and over with no downshift. Couldn’t believe it. Next hill was longer and higher. Normally, it would have downshifted as soon as the climb began. About 2/3 to the top, it finally left overdrive to high gear. It shifted back to OD before reaching the top. Again, couldn’t believe it. It took most hills in stride and only downshifted for short distances on the higher ones. I am very impressed with the new program and will test mpg on an up coming trip. Thank you for a good product and good service.

  10. 5 out of 5

    David l. Faust

    I have a 2011 Freedom Elite 21′ w/ Ford 6.8 V10. Prior to installing the 5 Star tune I drove my RV on a twenty mile route around my home. I live in rural west Tn so there are some pretty good hills, certainly not mountains. I wanted to get a fresh benchmark as to the stock performance. After my twenty miles course I installed the 5 Star tune, then did the same course again. The performance was greatly improved. I had much better throttle response, acceleration, it shifted very smoothly. Going up hills I didn’t need to keep pushing the accelerator further down to maintain speed. My temperature gauge was actually showing a little cooler than before the tune. Don’t know about the mileage improvement yet because it’s to early to check. I have a trip planned for Colorado in the next couple of weeks so I’ll be checking it. Easy to install, definitely better performance, pricey investment but I think it will be worth it. Very satisfied. DF. Adamsville, TN

  11. 1 out of 5

    Ear armstrong

    I was very skeptical about paying nearly 500 bucks for something that might not do what was promised. That has changed, I have driven just over 1000 miles since down loading the act tuner and couldn’t be happier. No more being scared of hills,it just performs so much better. Don’t no about mileage yet too much head wind.

  12. 5 out of 5

    Pat McCathern (verified owner)

    I concur with everything said about this tune. Night and day difference. It’s like a different vehicle; absolutely awesome. Installed on a 2016 F53

  13. 5 out of 5


    It’s a hell of a lot of money for some computer code. I had a really hard time reaching in my pocket and pulling out the money for a upgrade of some computer code. Have said that once I had it installed I can assure you it’s worth every penny times 3. Do it. you want regret it

  14. 5 out of 5

    Greg Yancey

    Took it for a drive and it made a noticeable difference in the acceleration and the shifting is now nice and firm compared to before…we are taking a 6k mile road trip starting in May and will be towing our car ….I think this is going to make a nice improvement. Thanks for your help.

  15. 5 out of 5

    Richard Lambert

    Thanks for the information, again. Well, we just got back from our test run for the weekend. I have to tell you that the device did exactly what you said it would do. I have a 32 foot class A motor home, and pulled an in closed trailer with the bike pictured above. Living in Northern Idaho, we do have some pretty good grades to pull no matter which way you go. In the past, I could get up them at about 45-50 mph. This time we made them at 60-65 mph. I can really feel the difference in the acceleration also. I have to fill it up to check the fuel mileage now. It has even gotten the approval of my wife and that is saying something, so therefore, I am a happy camper. So thanks again.

  16. 5 out of 5

    Bob Miller

    Thanks, installed in my 2011 tiffin allegro and it does ever thing you claimed . Just drove from SW Fla. to Seattle on the northern route and handled the mountains very well. The acceleration on the on ramps has improved greatly. Thanks again.

  17. 5 out of 5

    Jeff Coleman (verified owner)

    We just got back from our first trip after loading the 5 Star tune for my 2016 Ford Class C. All I can say is Wow!, this is a game changer. No more transmission hunting for the right gear. Hills are no longer torture as the truck pulls up grades nicely, changes gears when required and finally! changes back up when the grade is done. The extra torque and horsepower make driving this truck much more like a passenger car. Truly a game changer for us! We cannot recommend this product more highly.

  18. 5 out of 5

    Mike Haston

    I just purchased and installed the X4 and took a trip to South Lake Tahoe Ca. I couldnt believe the difference in acceleration on take offs and how much performance I had in the mountains. It really opened up the V10 and changed the shift pattern for the better.

  19. 5 out of 5

    Larry Kolda

    5 star tuning review. First off, I am an ASE -certified tech, Goodwrech- certified tech, 30 year business owner servicing trucks and RV’s. So, I will tell it like it is.
    I recently purchased a 2005 30′ Winnebago class A on a Ford v10 F53 chassis, because of the low miles and new condition. The coach only had 7400 miles since new. Since it was pristine and low mileage I made a couple road trips across my home state of South Dakota. Not satisfied with the performance, I did my research. After reading about the 5 star tuning, I decided to take the leap. Even though the price was a hard sell. I was tired of the constant shifting from 4th gear down to 2nd gear and rpm from 2200 to 4400. I wondered why did Ford completely miss 3rd gear? Not to mention overdrive and the lock up torque converter. Thus, I likened it to driving a loaded dump truck uphill with the brakes on. Slow and sluggish. Being sceptical, I loaded the 5 star tuning on the coach, this process took about 5 minutes. Although it may take longer to those not familiar with the process. But don’t be afraid…it is simple and easy. So after a trip over memorial weekend across our rolly-polly state. Not to mention windy…and it seems I always travel only when the wind is blowing 30 mph in my face. The results..
    I am totally impressed with the 5 star tuning on my stock coach. It now drives like a car instead of a dump truck. The shifting has totally changed and awesome. Since I pulled a toad against the wind, I can not comment on fuel consumption. But the overall power and performance were much more than I had expected. And this was the 1st time I actually could use the cruise control across the state without it continually shifting. It now will lug down to 2200 rpm and just power over the hills. This was by far the best investment I have done on the coach. To sum it all up. I will never drive a Ford F53 v10 without a 5 star tuning installed. And that’s how impressed I am.

  20. 5 out of 5

    Ronald Neal

    Took my first trip after installing the 5 star tune on my Thor Class A motorhome with the infamous 6.8 V-10. Let me tell you, this is awesome. my motorhome now shifts like a dream (It was horrible before.) Also I can now use my cruise control. I tried using cruise control when i first bought the coach and immediately knew it wasn’t going to work. the least little hill, it down shifted too low and the engine was screaming. now it’s perfect. Well worth what i paid. Thanks so much.

  21. 5 out of 5

    Kin Richardson (verified owner)

    To be honest, I didn’t want to spend the money, but I’m glad I did. I live in West Virginia (the mountain state), and the factory shifting of my 2008 E450 Ford chassis Class C was a mess. Upon losing speed on a hill it would downshift WAY down, skipping gears, revving the engine over 4500 RPM at times. The engine would suddenly sound like it was going to explode. It was very unsettling, which didn’t make for relaxed driving, and I couldn’t help worry about the engine and transmission. This was what caused me to spring for the tuner. I’m so glad I did. First, it added noticeable horsepower and torque. What this did was enable the RV to hold speeds on grades that it simply couldn’t do before. In many cases I can now hold 60 MPH (which is where I like to cruise in an RV), on fairly significant grades, without downshifting. All by itself, this is big. On steeper grades, when downshifting is inevitable, it’s measured and logical. It holds the higher gears as long as makes sense, then begins to drop thru the gears. No sudden jumps from 2500 RPM to 4500 RPM. Upshifting is also improved. Before I never used cruise control, because I was always trying to protect the engine from ridiculous downshifting, and the resultant over-revving (in my opinion). Since the tune, I’m able to lock in the cruise control, while traveling in West Virginia and relax. I’m sure I’m saving wear and tear on both the engine and transmission. As best as I can tell, there is no change whatsoever in my gas mileage, but that’s with a definite power boost, so I’ll call that a win. So glad I acquired this tune!

  22. 5 out of 5

    Daniel Roper

    After reading the reviews I had to join in to express my satisfaction with the the 5 Star Tune on My 2015 Winebago Sightseer 35G. No big trips yet but just a short 50 mile trip around this area I noticed a major change in the performance of the V10 powered drive train. The difference was so obvious I can’t wait to hit the road and go somewhere. Living just north of Dallas we head up to Oklahoma now and then and the little hills make me disengage the cruse to keep the shifting under control. The little hills I tested in the 50 mile trip had no shifting and held the speed constant. Very nice. Thanks to 5startune for developing this product. It is well worth the price.

  23. 5 out of 5

    TJ Chambers

    Had an issue with an email tune. The guys at 5 star sent me a tuner next day air since I was taking a trip and needed the tune. Cannot wait to see how much improvement the tune makes. Very Happy Customer.

  24. 5 out of 5


    OMG … the feeling of driving up a small hill in 6th gear maintaining 70 mph … sweet.

    We run 25000 pounds and are used to hanging with the slow trucks. Trying to pass was just too much drama. I mostly had to hand fly the rig as cruise control would make the drivetrain downshift to 4th way too easy. I just gave up and drove it at 60 mph.

    Post update the rig loves small inclines now. It’s like having a 75 lbs electric booster now. I hang with the average speed trucks now. My wife immediately remarked how quiet it was. At one point I looked over at her and said l just hit 80 mph and she did not even notice!

    This was one of the best upgrades after you get a tpms, navi, and camera setup.

    Post update

  25. 5 out of 5

    James M. McDowell (verified owner)

    After purchasing a 2019 Coachmen Leprechaun I came across this device on a Facebook push. Looked it over, watched the videos but was a little set off by the price. During a trip to North Carolina a fellow camper came over and basically told me “i was put off by the cost as well, but pulled the trigger and made the purchase. Man I’m glad I did”. That was enough for me to purchase it. Company stayed on line with me well past closing to get the tune downloaded and onto the device. Vehicle loading was simple and took 15 minutes. First trip was from VA Beach to Lancaster PA with a toad. First tank of gas had some old tune miles and some generator time on it. First fuel stop showed an improvement of 7.1 to 7.3 MPG with a toad. Second and third tanks were 7.8 with a toad. The additional MPG is an added bonus. Tune provided much better acceleration, better shift points, less uphill downshifting, better standing start power, quieter in the driver area, you name it, it was better. It was an effort not to drive this thing like my Tundra.

    If in doubt, don’t be.

  26. 5 out of 5

    Jason Sheffield

    I have a 2017 Thor ACE 30.2, without the tune it would struggle uphill, the shift points were off. With the tune I can climb through the sierras no problem and could pass the semis that were in my way crawling. I check gas mileage on my last trip (mostly flat) and I increased to 8.1 mpg running the generator the whole trip for kids. Before gas mileage was a low 6. Great upgrade for any RV, you won’t be disappointed,

  27. 5 out of 5

    Ron Warren

    Fantastic product! Unleashed the beast in my motor home. So much better power uphills and downshifting. Worth every penny!

  28. 1 out of 5

    Waylon Brown (verified owner)

    Pre 5 star tune we were considering going to a diesel pusher from our 2011 Itasca Sunstar. We loved the RV but the lack of power and constant down shifting was very annoying. Post 5 star tune and we have no plans on selling the Sunstar and going to a DP. The difference is amazing. There is noticeably more power and the V10 moves the RV without straining now. The interior noise is a fraction of what it was. Now even moderately steep hills are taken without downshifting. This is a rare exception of getting more than you pay for.

  29. 5 out of 5

    Michael L FLeury

    I had an issue with my Nguage tuner that caused me a lot of trouble. Tony was awsome in getting me a replacement tuner RTD. Again I had issue with getting tunes and tuner to work together. Again Tony worked with me with a stubborn tuner and my finicky truck. Through many emails and phone calls, we finally got the problem resolved. My hat’s off to Tony and Adam for working through this with me. Bad ass job guys!!!

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